Issues

• binary circuits

  iden3/circom#429 · Filter by author conduition opened on Sep 8, 2026

• Docs website is currently down

  iden3/circom#426 · Filter by author binoculars opened on Aug 10, 2026
  1

• Contradictory constant pins are lost during simplification

  iden3/circom#425 · Filter by author NullWitnessZK opened on Aug 4, 2026

• Bug: constant-folded left shift 1 << (1 << 30) OOMs the compiler

  iden3/circom#422 · Filter by author anon-researchers-123 opened on Jul 9, 2026

• Bug: pragma circom panics the parser instead of emitting P1003

  iden3/circom#421 · Filter by author anon-researchers-123 opened on Jul 9, 2026

• Bug: template recursion crashes Circom

  iden3/circom#420 · Filter by author anon-researchers-123 opened on Jul 9, 2026

• Bug: % by zero panics the compiler

  iden3/circom#419 · Filter by author anon-researchers-123 opened on Jul 9, 2026

• Safe-mode bounds checks miss indexes inside bus field accesses

  iden3/circom#418 · Filter by author jf-li00 opened on Jul 7, 2026

• Docs website polyfill phishing attack

  iden3/circom#417 · Filter by author tim-hoffman opened on Jul 1, 2026

• Constant << / >> by a large shift amount hangs the compiler

  iden3/circom#416 · Filter by author jubnzv opened on Jun 21, 2026

• ICE on constant x % 0 instead of erroring

  iden3/circom#415 · Filter by author jubnzv opened on Jun 20, 2026

• ZK-Humanity Verification API - Integration Opportunity

  iden3/circom#411 · Filter by author chukwumaoduagu-bit opened on May 22, 2026

• ICE when reusing signal names in an if block that contains at least one template.

  iden3/circom#409 · Filter by author DragonDev1906 opened on Apr 20, 2026
  1

• Bug: Compiler stack overflow crash on deeply nested expressions (~2900 levels)

  iden3/circom#408 · Filter by author chamitro opened on Mar 19, 2026
  1

• [Bugs] Circom Bug Reports — Found with ZK's compiler differential Testing

  iden3/circom#407 · Filter by author chamitro opened on Mar 17, 2026
  2

• [bug] Runtime inputs exceeding field prime are silently reduced without warning

  iden3/circom#406 · Filter by author chamitro opened on Mar 16, 2026
  3

• [Bug] Constants exceeding field prime silently wrap without warning

  iden3/circom#403 · Filter by author chamitro opened on Feb 13, 2026
  1

• [Security] Out-of-bounds array access in witness generation returns arbitrary values without error

  iden3/circom#402 · Filter by author chamitro opened on Feb 13, 2026
  4

• internal error: Anonymous calls should not be reachable at this point

  iden3/circom#398 · Filter by author tim-hoffman opened on Jan 30, 2026
  2

• signal defined within a Block causes panics

  iden3/circom#394 · Filter by author tim-hoffman opened on Dec 11, 2025
  2

• Bug: Compiler fails to apply modular reduction to prime p in constant expressions, causing inconsistency with p+0

  iden3/circom#393 · Filter by author Sakura-0407 opened on Dec 5, 2025
  1

• Unexpected Assertion in Circom 2.2.2 C++ Witness Generation

  iden3/circom#374 · Filter by author annapywoo opened on Jul 15, 2025
  1

• Bug: Buses as Circuit Inputs (JSON Format) doesn't work

  iden3/circom#373 · Filter by author june-in-exile opened on Jul 11, 2025
  1

• bug: loop invariant constraints are not optimized in Circom

  iden3/circom#368 · Filter by author liamegger opened on May 21, 2025
  

• Complement Test Regression

  iden3/circom#367 · Filter by author kenohassler opened on May 8, 2025