feat: update module go.opentelemetry.io/otel/sdk to v1.45.0 [security]

[renovate]

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
go.opentelemetry.io/otel/sdk	v1.28.0 → v1.45.0

---

OpenTelemetry Go SDK Vulnerable to Arbitrary Code Execution via PATH Hijacking

CVE-2026-24051 / GHSA-9h8m-3fm2-qjrq

More information

Details

Impact

The OpenTelemetry Go SDK in version v1.20.0-1.39.0 is vulnerable to Path Hijacking (Untrusted Search Paths) on macOS/Darwin systems. The resource detection code in sdk/resource/host_id.go executes the ioreg system command using a search path. An attacker with the ability to locally modify the PATH environment variable can achieve Arbitrary Code Execution (ACE) within the context of the application.

Patches

This has been patched in d45961b, which was released with v1.40.0.

References

• CWE-426: Untrusted Search Path

Severity

• CVSS Score: 7.0 / 10 (High)
• Vector String: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

• https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-9h8m-3fm2-qjrq
• https://github.com/open-telemetry/opentelemetry-go/commit/d45961bcda453fcbdb6469c22d6e88a1f9970a53
• https://nvd.nist.gov/vuln/detail/CVE-2026-24051
• https://pkg.go.dev/vuln/GO-2026-4394
• https://github.com/advisories/GHSA-9h8m-3fm2-qjrq

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking

CVE-2026-39883 / GHSA-hfvc-g4fc-pqhx

More information

Details

Summary

The fix for GHSA-9h8m-3fm2-qjrq (CVE-2026-24051) changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms.

Root Cause

sdk/resource/host_id.go line 42:

if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {

Compare with the fixed Darwin path at line 58:

result, err := r.execCommand("/usr/sbin/ioreg", "-rd1", "-c", "IOPlatformExpertDevice")

The execCommand helper at sdk/resource/host_id_exec.go uses exec.Command(name, arg...) which searches $PATH when the command name contains no path separator.

Affected platforms (per build tag in host_id_bsd.go:4): DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris.

The kenv path is reached when /etc/hostid does not exist (line 38-40), which is common on FreeBSD systems.

Attack

1. Attacker has local access to a system running a Go application that imports go.opentelemetry.io/otel/sdk
2. Attacker places a malicious kenv binary earlier in $PATH
3. Application initializes OpenTelemetry resource detection at startup
4. hostIDReaderBSD.read() calls exec.Command("kenv", ...) which resolves to the malicious binary
5. Arbitrary code executes in the context of the application

Same attack vector and impact as CVE-2026-24051.

Suggested Fix

Use the absolute path:

if result, err := r.execCommand("/bin/kenv", "-q", "smbios.system.uuid"); err == nil {

On FreeBSD, kenv is located at /bin/kenv.

Severity

• CVSS Score: 7.3 / 10 (High)
• Vector String: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

• https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hfvc-g4fc-pqhx
• http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0
• https://nvd.nist.gov/vuln/detail/CVE-2026-39883
• https://github.com/advisories/GHSA-hfvc-g4fc-pqhx

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

OpenTelemetry-Go: Exporter config logging may leak endpoint URLs in info logs

CVE-2026-81870 / GHSA-8wmf-6v46-5gfg

More information

Details

Summary

OpenTelemetry Go versions 1.5.0 through 1.44.0 can include trace exporter endpoint configuration in an internal diagnostic log emitted when an SDK TracerProvider is created. The default OpenTelemetry logger does not emit this event. Exposure requires an application to install a logger that enables OpenTelemetry's internal Info-level diagnostics and for someone other than the intended audience to have access to those logs.

The logged configuration can disclose the address of the trace collector and whether the OTLP/HTTP connection is configured as insecure. The Zipkin exporter logs its complete collector URL, so credentials in URL userinfo or tokens in the query string are also disclosed if an application embeds them there. OTLP authentication headers, TLS key material, and exported span data are not included in this log.

Exporter MarshalLog implementations that caused this configuration to be included in internal logs were introduced by a1fff3c.

Details

When sdk/trace.NewTracerProvider constructs a provider, it records a TracerProvider created internal Info event containing the provider configuration. In affected versions, the configuration's MarshalLog methods recursively include:

1. the provider's span processors;
2. each processor's span exporter; and
3. for the OTLP trace exporter, its client configuration.

This causes the following values to be present in the event:

• OTLP trace gRPC: the configured endpoint;
• OTLP trace HTTP: the configured endpoint and the Insecure flag; and
• Zipkin: the complete collector URL.

OpenTelemetry Go does not emit this event with its default logger, which only emits errors. An application must explicitly configure a sufficiently verbose logger with otel.SetLogger. The required logr verbosity is version-dependent:

• versions 1.5.0 through 1.14.x use V(1) for this Info event; and
• versions 1.15.0 through 1.44.0 use V(4).

OTLP header configuration is not part of the marshaled object, so credentials supplied with WithHeaders or the corresponding environment variables are not exposed. The documented OTLP WithEndpoint input is a collector address rather than a credential-bearing URL. The higher-risk case is therefore the Zipkin collector URL, which is retained and logged in full, or an application passing sensitive data in an OTLP endpoint outside the documented format.

Proof of concept

The following program demonstrates the behavior with OpenTelemetry Go 1.44.0. It deliberately places credentials and a token in the Zipkin collector URL and enables internal Info logging:

package main

import (
	"bytes"
	"context"
	"fmt"

	"github.com/go-logr/logr/funcr"
	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/exporters/zipkin"
	sdktrace "go.opentelemetry.io/otel/sdk/trace"
)

func main() {
	var logs bytes.Buffer
	otel.SetLogger(funcr.New(func(_, args string) {
		_, _ = logs.WriteString(args)
	}, funcr.Options{Verbosity: 4}))

	exporter, err := zipkin.New(
		"http://user:pass@zipkin.internal:9411/api/v2/spans?token=secret",
	)
	if err != nil {
		panic(err)
	}

	tp := sdktrace.NewTracerProvider(sdktrace.WithBatcher(exporter))
	_ = tp.Shutdown(context.Background())

	fmt.Println(logs.String())
}

The TracerProvider created event contains:

http://user:pass@zipkin.internal:9411/api/v2/spans?token=secret

For versions before 1.15.0, set funcr.Options{Verbosity: 1} instead.

Impact

This is a conditional disclosure through application logs. Affected applications must enable verbose OpenTelemetry internal diagnostics and configure a trace exporter containing information they do not intend to expose to readers of those logs. In that configuration, a person or system with log access can learn the trace collector address and internal network topology. If credentials or tokens are embedded directly in a Zipkin collector URL, those values can also be recovered from the logs.

There is no exposure with the default OpenTelemetry logger, and the vulnerable log is generated from local application configuration rather than remotely supplied span data. OTLP authentication headers, certificate or private-key contents, and telemetry payloads are not logged by this path.

Remediation

Upgrade the affected OpenTelemetry Go modules to version 1.45.0 or later. The fix in 3a1412d stops recursively marshaling exporter and client configuration and records their types instead.

If an immediate upgrade is not possible:

• keep OpenTelemetry internal logging below the Info verbosity described above;
• do not embed credentials or tokens in exporter endpoint URLs; use authentication headers or another supported credential mechanism; and
• restrict access to existing logs and rotate any credentials that may already have been recorded.

Severity

• CVSS Score: 2.0 / 10 (Low)
• Vector String: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

• https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-8wmf-6v46-5gfg
• https://nvd.nist.gov/vuln/detail/CVE-2026-81870
• https://github.com/open-telemetry/opentelemetry-go/pull/8438
• https://github.com/open-telemetry/opentelemetry-go/commit/3a1412d2b3bc4e4231fbeac2ed42117ae541bb38
• https://github.com/open-telemetry/opentelemetry-go/releases/tag/exporters/zipkin/v1.45.0
• https://github.com/open-telemetry/opentelemetry-go/releases/tag/sdk/v1.45.0
• https://github.com/advisories/GHSA-8wmf-6v46-5gfg

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

OpenTelemetry-Go: UTF-8 replacement rune bypasses attribute length truncation

CVE-2026-81869 / GHSA-p9f8-wvj8-2fg8

More information

Details

Summary

The OpenTelemetry Go SDK trace package can fail to enforce AttributeValueLengthLimit for string attributes containing the valid Unicode replacement character U+FFFD. An oversized attacker-controlled attribute value that includes U+FFFD is returned untruncated, bypassing the configured memory/DoS protection and allowing increased per-span memory usage. The finding is low severity because it requires a deployment with attribute value length limits enabled and attacker-controlled data being recorded into span attributes.

Introduced in commit 49a6536

Details

String and string-slice span attributes are truncated through safeTruncate when AttributeValueLengthLimit is non-negative. The finding evidence identifies this enforcement path in sdk/trace/span.go:303-331, with string attributes passed to safeTruncate at sdk/trace/span.go:309-310 and string-slice entries passed to safeTruncate in the loop beginning at sdk/trace/span.go:312.

safeTruncate first calls safeTruncateValidUTF8; if that returns ok=false, it calls strings.ToValidUTF8(input, "") and retries. The relevant code is identified in sdk/trace/span.go:337-355. safeTruncateValidUTF8 treats any utf8.RuneError from utf8.DecodeRuneInString as invalid UTF-8 and immediately returns the original input with ok=false. However, Go also returns utf8.RuneError for a valid encoded U+FFFD rune. The validation artifact confirms this behavior with output r=U+FFFD size=3 runeError=true.

For an input such as "AAAA" + U+FFFD + strings.Repeat("B", 20) and a limit of 5, the first truncation attempt sees U+FFFD as utf8.RuneError and returns the full input with ok=false. strings.ToValidUTF8 does not remove the valid U+FFFD rune, so the second attempt returns the same full input. As a result, the span attribute value remains 27 bytes long even though the configured limit is 5.

PoC

validation-artifact.zip

The validation artifact contains a package-level Go test at validation-artifact.tar:safe_truncate_bypass/safe_truncate_poc_test.go and supporting output at validation-artifact.tar:safe_truncate_bypass/runecheck_output.txt.

Reproduction configuration:

• Repository: pellared/opentelemetry-go
• Commit: 49a6536 from September 12, 2022
• Package/module path: sdk/trace under the sdk module
• Attribute value length limit used by the PoC: limit := 5
• Dependencies must be available through the network or a local module cache/vendor directory.

Commands:

cd /path/to/opentelemetry-go
git checkout 49a6536
tar -xOf /path/to/validation-artifact.tar safe_truncate_bypass/safe_truncate_poc_test.go > sdk/trace/safe_truncate_poc_test.go
cd sdk
go test ./trace -run TestSafeTruncateBypass -count=1 -v

Expected vulnerable output includes a failing test showing that the returned value exceeds the configured limit:

=== RUN   TestSafeTruncateBypass
    safe_truncate_poc_test.go:14: input_len=27 got_len=27 input="AAAA�BBBBBBBBBBBBBBBBBBBB" got="AAAA�BBBBBBBBBBBBBBBBBBBB"
    safe_truncate_poc_test.go:16: bypass: got_len 27 > limit 5
--- FAIL: TestSafeTruncateBypass

The artifact also records the standalone UTF-8 behavior needed for the bypass:

tar -xOf /path/to/validation-artifact.tar safe_truncate_bypass/runecheck_output.txt

Expected output:

r=U+FFFD size=3 runeError=true

Impact

This is a Unicode handling and resource-limit bypass that weakens span attribute memory controls. Applications that enable AttributeValueLengthLimit to bound memory usage can still store oversized attacker-controlled attribute values if those values contain U+FFFD. The practical impact is increased memory use and reduced denial-of-service protection in the instrumented process; the finding does not show confidentiality or integrity impact.

Severity

• CVSS Score: 5.1 / 10 (Medium)
• Vector String: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References

• https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-p9f8-wvj8-2fg8
• https://nvd.nist.gov/vuln/detail/CVE-2026-81869
• https://github.com/open-telemetry/opentelemetry-go/issues/5996
• https://github.com/open-telemetry/opentelemetry-go/pull/5997
• https://github.com/open-telemetry/opentelemetry-go/commit/e016a78c9f5b24a1c2beeaad47686c2f2213f49a
• https://github.com/open-telemetry/opentelemetry-go/releases/tag/sdk/v1.33.0
• https://github.com/advisories/GHSA-p9f8-wvj8-2fg8

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

open-telemetry/opentelemetry-go (go.opentelemetry.io/otel/sdk)

v1.45.0

Compare Source

v1.44.0: /v0.66.0/v0.20.0/v0.0.17

Compare Source

Added

• Add ByteSlice and ByteSliceValue functions for new BYTESLICE attribute type in go.opentelemetry.io/otel/attribute. (#​7948)
• Apply attribute value limit to the KindBytes attribute type in go.opentelemetry.io/otel/sdk/log. (#​7990)
• Apply attribute value limit to the BYTESLICE attribute type in go.opentelemetry.io/otel/sdk/trace. (#​7990)
• Support BYTESLICE attributes in go.opentelemetry.io/otel/trace. (#​8153)
• Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlptrace. (#​8153)
• Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlplog. (#​8153)
• Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlpmetric. (#​8153)
• Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/zipkin. (#​8153)
• Add String method for Value type in go.opentelemetry.io/otel/attribute. (#​8142)
• Add Slice and SliceValue functions for new SLICE attribute type in go.opentelemetry.io/otel/attribute. (#​8166)
• Support SLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlptrace. (#​8216)
• Support SLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlplog. (#​8216)
• Support SLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlpmetric. (#​8216)
• Support SLICE attributes in go.opentelemetry.io/otel/exporters/zipkin. (#​8216)
• Apply AttributeValueLengthLimit to attribute.SLICE type attribute values in go.opentelemetry.io/otel/sdk/trace, recursively truncating contained string values. (#​8217)
• Add Error field on Record type in go.opentelemetry.io/otel/log/logtest. (#​8148)
• Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#​8157)
• Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#​8157)
• Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc. (#​8157)
• Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#​8157)
• Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (#​8157)
• Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8157)
• Add Settable to go.opentelemetry.io/otel/metric/x to allow reusing attribute options. (#​8178)
• Add experimental support for splitting metric data across multiple batches in go.opentelemetry.io/otel/sdk/metric.
  Set OTEL_GO_X_METRIC_EXPORT_BATCH_SIZE=<max_size> to enable for all periodic readers.
  See go.opentelemetry.io/otel/sdk/metric/internal/x for feature documentation. (#​8071)
• Add experimental self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc.
  Enable with OTEL_GO_X_SELF_OBSERVABILITY=true environment variable.
  See go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc/internal/x for feature documentation. (#​8192)
• Add experimental self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp.
  Enable with OTEL_GO_X_SELF_OBSERVABILITY=true environment variable.
  See go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp/internal/x for feature documentation. (#​8194)
• Add experimental self-observability metrics in go.opentelemetry.io/otel/exporters/stdout/stdoutlog.
  Enable with OTEL_GO_X_SELF_OBSERVABILITY=true environment variable.
  See go.opentelemetry.io/otel/stdout/stdoutlog/internal/x for feature documentation. (#​8263)
• Add WithDefaultAttributes to go.opentelemetry.io/otel/metric/x to support setting default attributes on instruments. (#​8135)
• Add go.opentelemetry.io/otel/semconv/v1.41.0 package.
  The package contains semantic conventions from the v1.41.0 version of the OpenTelemetry Semantic Conventions.
  See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.40.0. (#​8324)
• Add Observable variants of instruments to go.opentelemetry.io/otel/semconv/v1.41.0 package. (#​8350)
• Generate explicit histogram bucket boundaries from weaver configuration for HTTP and RPC duration instruments in go.opentelemetry.io/otel/semconv/v1.41.0. (#​8002)

Changed

• ⚠️ Breaking Change: go.opentelemetry.io/otel/sdk/metric now applies a default cardinality limit of 2000 to comply with the Metrics SDK specification recommendation.
  New attribute sets are dropped when the cardinality limit is reached. The measurement of these sets are aggregated into a special attribute set containing attribute.Bool("otel.metric.overflow", true).
  This can break users who relied on the previous unlimited default.
  Set WithCardinalityLimit(0) or the deprecated OTEL_GO_X_CARDINALITY_LIMIT=0 environment variable to preserve unlimited cardinality.
  Note that support for OTEL_GO_X_CARDINALITY_LIMIT may be removed in a future release. (#​8247)
• ErrorType in go.opentelemetry.io/otel/semconv now unwraps errors created with fmt.Errorf when deriving the error.type attribute. (#​8133)
• go.opentelemetry.io/otel/sdk/log now unwraps error chains created with fmt.Errorf when deriving the error.type attribute from errors on log records. (#​8133)
• Set.MarshalLog method in go.opentelemetry.io/otel/attribute now uses Value.String formatting following the OpenTelemetry AnyValue representation for non-OTLP protocols. (#​8169)
• Optimize go.opentelemetry.io/otel/sdk/metric to return a drop reservoir and short-circuit Offer calls to the exemplar reservoir when exemplar.AlwaysOffFilter is configured. (#​8211) (#​8267)
• Optimize go.opentelemetry.io/otel/sdk/metric to return a drop reservoir for asynchronous instruments when exemplar.TraceBasedFilter is configured. (#​8286)

Deprecated

• Deprecate Value.Emit method in go.opentelemetry.io/otel/attribute.
  Use Value.String instead. (#​8176)

Fixed

• Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc.
  The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
• Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp.
  The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
• Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc.
  The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
• Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp.
  The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
• Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc.
  The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
• Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp.
  The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
• Fix gzipped request body replay on redirect in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#​8135)
• Fix gzipped request body replay on redirect in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8152)
• go.opentelemetry.io/otel/exporters/prometheus now uses Value.String formatting for label values following the OpenTelemetry AnyValue representation for non-OTLP protocols. (#​8170)
• Propagate errors from the exporter when calling Shutdown on BatchSpanProcessor in go.opentelemetry.io/otel/sdk/trace. (#​8197)
• Fix stale status code reporting on self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8226)
• Fix a concurrent Collect data race and potential panic in go.opentelemetry.io/otel/exporters/prometheus when WithResourceAsConstantLabels option is used. (#​8227)
• Fix race condition in FixedSizeReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar by reverting #​7447. (#​8249)
• Fix FixedSizeReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar to safely handle zero size.
  A capacity check in the constructor initializes the reservoir safely and skips initialization for zero-cap; early returns in Offer() and Collect() ensure no-op behavior. (#​8295)
• Fix counting of spans and logs in self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp, go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc, and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8254)
• Drop conflicting scope attributes named name, version, or schema_url from metric labels in go.opentelemetry.io/otel/exporters/prometheus, preserving the dedicated otel_scope_name, otel_scope_version, and otel_scope_schema_url labels. (#​8264)
• Close schema files opened by ParseFile in go.opentelemetry.io/otel/schema/v1.0 and go.opentelemetry.io/otel/schema/v1.1. (GHSA-995v-fvrw-c78m)
• Enforce the 8192-byte baggage size limit during extraction/parsing, changing behavior when the limit is exceeded in go.opentelemetry.io/otel/baggage and go.opentelemetry.io/otel/propagation. (#​8222)
• Fix go.opentelemetry.io/otel/semconv/v1.41.0 to include Attr* helper methods for required attributes on observable instruments. (#​8361)
• Limit baggage extraction error reporting in go.opentelemetry.io/otel/propagation to prevent malformed or oversized baggage headers from flooding logs. (GHSA-5wrp-cwcj-q835)

What's Changed

• Document how to implement experimental features by @​dashpole in #​8124
• Add support for experimental options in the metrics API by @​dashpole in #​8111
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to e5db982 by @​renovate[bot] in #​8136
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to 32cd848 by @​renovate[bot] in #​8141
• fix(deps): update googleapis to 6f92a3b by @​renovate[bot] in #​8140
• chore(deps): update module github.com/jgautheron/goconst to v1.10.0 by @​renovate[bot] in #​8134
• attribute: add BYTESLICE type support by @​NesterovYehor in #​7948
• unwrap error chains created with fmt.Errorf by @​pellared in #​8133
• log/logtest: add Error field to Record type by @​pellared in #​8148
• attribute: add String method for Value type by @​pellared in #​8142
• fix(deps): update module golang.org/x/sys to v0.43.0 by @​renovate[bot] in #​8156
• chore(deps): update codspeedhq/action action to v4.13.1 by @​renovate[bot] in #​8155
• fix(otlploghttp): replay gzipped bodies on redirect by @​MrAlias in #​8152
• Improve test coverage for exponential histogram edge cases by @​dashpole in #​8129
• Add example test for the prometheus exporter by @​dashpole in #​8137
• chore(deps): update golang.org/x/telemetry digest to 93c7c8a by @​renovate[bot] in #​8158
• chore(deps): update module github.com/mattn/go-runewidth to v0.0.23 by @​renovate[bot] in #​8161
• chore(deps): update module github.com/mattn/go-isatty to v0.0.21 by @​renovate[bot] in #​8159
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to 6b4d2bc by @​renovate[bot] in #​8160
• Add experimental support for batching in periodic reader by @​dashpole in #​8071
• chore(deps): update golang.org/x by @​renovate[bot] in #​8165
• Support BYTESLICE attributes across trace and exporter paths by @​MrAlias in #​8153
• chore(deps): update golang.org/x by @​renovate[bot] in #​8171
• fix(deps): update module golang.org/x/tools to v0.44.0 by @​renovate[bot] in #​8173
• metricdatatest: support BYTESLICE attribute comparisons by @​pellared in #​8167
• test: add test case for ByteSlice in TestValueFromAttribute by @​pellared in #​8168
• attribute: Set.MarshalLog to use Value.String instead of Value.Emit by @​pellared in #​8169
• prometheus: use Value.String instead of Value.Emit by @​pellared in #​8170
• fix(deps): update golang.org/x to 746e56f by @​renovate[bot] in #​8175
• Add support for the development attributes advisory parameter by @​dashpole in #​8135
• chore(deps): update actions/upload-artifact action to v7.0.1 by @​renovate[bot] in #​8177
• attribute: deprecate Value.Emit by @​pellared in #​8176
• chore(deps): update module github.com/manuelarte/funcorder to v0.6.0 by @​renovate[bot] in #​8181
• chore(deps): update module github.com/ashanbrown/makezero/v2 to v2.2.1 by @​renovate[bot] in #​8180
• chore(deps): update module github.com/ashanbrown/forbidigo/v2 to v2.3.1 by @​renovate[bot] in #​8182
• fix(deps): update module go.opentelemetry.io/collector/pdata to v1.56.0 by @​renovate[bot] in #​8184
• Update semconv template and 1.40.0 to use Enabled for metrics by @​dashpole in #​8172
• Add x.Settable to allow reusing attribute options by @​dashpole in #​8178
• chore(deps): update actions/cache action to v5.0.5 by @​renovate[bot] in #​8187
• fix(deps): update googleapis to 3e5c5a5 by @​renovate[bot] in #​8190
• fix(otlpmetrichttp): replay gzipped bodies on redirect by @​pellared in #​8185
• fix(deps): update module golang.org/x/vuln to v1.2.0 by @​renovate[bot] in #​8193
• fix(deps): update googleapis to afd174a by @​renovate[bot] in #​8195
• chore(deps): update module github.com/dave/dst to v0.27.4 by @​renovate[bot] in #​8198
• Fix exemplar tests in containerized environments by @​dashpole in #​8188
• Update contributing to recommend using Enabled by @​dashpole in #​8189
• otlptracehttp: reset pooled gzip writer before reuse by @​pellared in #​8196
• chore(deps): update golang.org/x/telemetry digest to fac6e1c by @​renovate[bot] in #​8202
• fix(deps): update module github.com/opentracing-contrib/go-grpc to v0.1.3 by @​renovate[bot] in #​8207
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to 07c9668 by @​renovate[bot] in #​8206
• attribute: make TestHashKVs linear-time by @​pellared in #​8204
• chore(deps): update github/codeql-action action to v4.35.2 by @​renovate[bot] in #​8208
• sdk/trace: propagate SpanExporter.Shutdown error from BatchSpanProcessor by @​alliasgher in #​8197
• add GitHub Copilot code review instructions by @​pellared in #​8212
• chore(deps): update module github.com/grpc-ecosystem/grpc-gateway/v2 to v2.29.0 by @​renovate[bot] in #​8214
• attribute: add SLICE type support by @​pellared in #​8166
• Fix typos found by copilot by @​dashpole in #​8221
• chore(deps): update module github.com/go-git/go-git/v5 to v5.18.0 by @​renovate[bot] in #​8223
• docs: add agent guide for autonomous coding agents by @​pellared in #​8215
• test: truncate attribute string values using Unicode rune count by @​pellared in #​8219
• sdk/trace: apply AttributeValueLengthLimit to attribute.SLICE by @​pellared in #​8217
• chore(deps): update module github.com/dlclark/regexp2 to v1.12.0 by @​renovate[bot] in #​8229
• prometheus: fix Collect data race for constant resource labels by @​pellared in #​8227
• exporters: support SLICE attributes by @​pellared in #​8216
• chore(deps): update codspeedhq/action action to v4.14.0 by @​renovate[bot] in #​8234
• Fix stale status code reporting on self-observability metrics by @​dashpole in #​8226
• fix(deps): update googleapis to e10c466 by @​renovate[bot] in #​8241
• fix(deps): update build-tools to v0.30.0 by @​renovate[bot] in #​8244
• [chore] changelog: re-run workflow on PR title edits by @​cijothomas in #​8246
• stdlog observ: remove partial success handling by @​yumosx in #​8174
• feat: add self-observability metrics to otlpmetrichttp metric exporters by @​dashpole in #​8194
• chore(deps): update golang.org/x/telemetry digest to 392afab by @​renovate[bot] in #​8248
• Use a DropReservoir when an exemplar.AlwaysOffFilter is provided by @​dashpole in #​8211
• metric: clarify sync vs observable Gauge in package godoc by @​alliasgher in #​8225
• sdk/metric: apply default cardinality limit of 2000 by @​pellared in #​8247
• Revert "Optimize fixedsize reservoir (#​7447)" by @​dashpole in #​8249
• fix(deps): update module golang.org/x/vuln to v1.3.0 by @​renovate[bot] in #​8256
• chore(deps): update otel/weaver docker tag to v0.23.0 by @​renovate[bot] in #​8255
• Run benchmarks using Settable for more accurate comparrisons by @​dashpole in #​8252
• Add MaxRequestSize option to OTLP exporters by @​pellared in #​8157
• fix counting of spans/logs in self-observability metrics in otlp trace and log exporters by @​dashpole in #​8254
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to 2f88a58 by @​renovate[bot] in #​8260
• chore(deps): update golang.org/x/telemetry digest to 329d219 by @​renovate[bot] in #​8259
• chore(deps): update module github.com/sourcegraph/go-diff to v0.8.0 by @​renovate[bot] in #​8262
• chore(deps): update module github.com/mattn/go-isatty to v0.0.22 by @​renovate[bot] in #​8265
• chore(deps): update module go.uber.org/zap to v1.28.0 by @​renovate[bot] in #​8269
• fix(deps): update googleapis to 7cedc36 by @​renovate[bot] in #​8266
• chore(deps): update module github.com/securego/gosec/v2 to v2.26.1 by @​renovate[bot] in #​8270
• fix(deps): update module go.opentelemetry.io/collector/pdata to v1.57.0 by @​renovate[bot] in #​8275
• chore(deps): update codspeedhq/action action to v4.15.0 by @​renovate[bot] in #​8272
• chore(deps): update golang.org/x/telemetry digest to 76f71b9 by @​renovate[bot] in #​8271
• Apply attribute value limit for BYTESLICE and KindBytes by @​NesterovYehor in #​7990
• chore(deps): update module github.com/alecthomas/chroma/v2 to v2.24.0 by @​renovate[bot] in #​8277
• chore(deps): update module github.com/fsnotify/fsnotify to v1.10.0 by @​renovate[bot] in #​8280
• chore(deps): update module github.com/alecthomas/chroma/v2 to v2.24.1 by @​renovate[bot] in #​8281
• Prometheus Exporter: Drop Scope attributes name, version and schema_url by @​ArthurSens in #​8264
• attribute: split HashKVs benchmark by value type by @​pellared in #​8268
• [chore] metric: document Enabled and WithAttributeSet in package docs by @​cijothomas in #​8245
• chore(deps): update module github.com/bombsimon/wsl/v5 to v5.8.0 by @​renovate[bot] in #​8287
• fix(deps): update module github.com/masterminds/semver/v3 to v3.5.0 by @​renovate[bot] in [#​8283](https://redi

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[renovate]

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 12 additional dependencies were updated
• The go directive was updated for compatibility reasons

Details:

Package	Change
go	1.22 -> 1.25.0
go.opentelemetry.io/otel	v1.28.0 -> v1.45.0
go.opentelemetry.io/otel/trace	v1.28.0 -> v1.45.0
github.com/go-logr/logr	v1.4.2 -> v1.4.4
github.com/google/go-cmp	v0.6.0 -> v0.7.0
github.com/rogpeppe/go-internal	v1.12.0 -> v1.14.1
go.opentelemetry.io/otel/metric	v1.28.0 -> v1.45.0
go.opentelemetry.io/otel/sdk/metric	v1.27.0 -> v1.45.0
golang.org/x/crypto	v0.24.0 -> v0.28.0
golang.org/x/net	v0.26.0 -> v0.30.0
golang.org/x/sys	v0.21.0 -> v0.47.0
golang.org/x/text	v0.16.0 -> v0.19.0
golang.org/x/tools	v0.21.1-0.20240508182429-e35e4ccd0d2d -> v0.26.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 54.94%. Comparing base (3cf2082) to head (99e9fe2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #79      +/-   ##
==========================================
+ Coverage   54.81%   54.94%   +0.12%     
==========================================
  Files          25       25              
  Lines        1609     1609              
==========================================
+ Hits          882      884       +2     
+ Misses        630      628       -2     
  Partials       97       97              

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