🛡️ CVE-2025-57801
🔴 CVSS 9.1 — Critical ✅ No Known Exploit CWE-347 NVD
9.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

gnark is a zero-knowledge proof system framework. In versions prior to 0.14.0, the Verify function in eddsa.go and ecdsa.go used the S value from a signature without asserting that 0 ≤ S < order, leading to a signature malleability vulnerability. Because gnark’s native EdDSA and ECDSA circuits lack essential constraints, multiple distinct witnesses can satisfy the same public inputs. In protocols where nullifiers or anti-replay checks are derived from R and S, this enables signature malleability and may allow double spending. This issue has been addressed in version 0.14.0.

Details

Severity HIGH
CVSS Score 9.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE CWE-347
Public Exploit ✅ No
Source NVD
Published 2025-08-22
Updated 2026-06-15
Modified 2026-02-03

Affected Packages

Software From version Fixed in
github.com/consensys/gnark — —
gnark — 0.14.0

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