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Duplicate Advisory: Consensys gnark-crypto allows Signature Malleability

Critical severity GitHub Reviewed Published Sep 28, 2023 to the GitHub Advisory Database • Updated Jan 22, 2026
Withdrawn This advisory was withdrawn on Jan 22, 2026

Package

gomod github.com/Consensys/gnark-crypto (Go)

Affected versions

< 0.12.0

Patched versions

0.12.0

Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-fr8m-434r-g3xp. This link is maintained to preserve external references.

Original 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.

References

Published by the National Vulnerability Database Sep 28, 2023
Published to the GitHub Advisory Database Sep 28, 2023
Reviewed Sep 28, 2023
Withdrawn Jan 22, 2026
Last updated Jan 22, 2026

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

Weaknesses

Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. Learn more on MITRE.

CVE ID

No known CVE

GHSA ID

GHSA-9xfq-8j3r-xp5g

Source code

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