What’s Vulnerable › Vulnerabilities

CVE-2023-44273

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-28 · updated 2026-06-17
• Weakness: CWE-502

Description

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.

Affected products

• Consensys Gnark-Crypto: before 0.12.0 — fixed in 0.12.0

How to fix

Upgrade to a fixed version: Consensys Gnark-Crypto 0.12.0. Check the vendor advisory for mitigations.

References

• https://github.com/Consensys/gnark-crypto/pull/449
• https://github.com/Consensys/gnark-crypto/releases
• https://verichains.io
• https://github.com/Consensys/gnark-crypto/pull/449
• https://github.com/Consensys/gnark-crypto/releases
• https://verichains.io

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