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TI-2023-23797 Aliases CVE-2023-44273GHSA-fr8m-434r-g3xp

Consensys gnark-crypto through 0.11.2 allows Signature Malleability.

Priority MEDIUM 51CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution, Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502 and CWE-347.

Summary

Consensys gnark-crypto through 0.11.2 allows Signature Malleability. This occurs because deserialisation of EdDSA and ECDSA signatures does not ensure that the data is in a certain interval.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01055 64th percentileScored 2026-11-07
Fix Fixed github.com/consensys/gnark-crypto (Go): 0.12.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—github.com/consensys/gnark-crypto (Go)before 0.12.00.12.0Patch availableGHSA-fr8m-434r-g3xp
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • github.com/consensys/gnark-crypto (Go) Vendor— Affected before 0.12.0 Fixed in 0.12.0 Patch available GHSA-fr8m-434r-g3xp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:consensys:gnark-crypto:*:*:*:*:*:*:*:*before 0.12.0VulnerableConsensys
  • cpe:2.3:a:consensys:gnark-crypto:*:*:*:*:*:*:*:* Versions before 0.12.0 Vulnerable ·Consensys

Remediation

  • Fix · GHSA-fr8m-434r-g3xp github.com/consensys/gnark-crypto (Go) Fixed in 0.12.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-44273
  2. 2026-10-03 Alias added: GHSA-fr8m-434r-g3xp

References

Patch 1

Advisory 1

Other 6

  • TI-2024-30151 gnark's Groth16 commitment extension unsound for more than one commitment CVSS 3.1MEDIUM 6.2
  • TI-2024-30152 gnark's commitments to private witnesses in Groth16 as implemented break zero-knowledge property CVSS 3.1MEDIUM 5.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences