Improper Verification of Cryptographic Signature Affecting github.com/consensys/gnark/std/signature/ecdsa package, versions <0.14.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMCONSENSYSGNARKSTDSIGNATUREECDSA-12177848
- published24 Aug 2025
- disclosed22 Aug 2025
- creditUnknown
Introduced: 22 Aug 2025
NewCVE-2025-57801 Â (opens in a new tab)How to fix?
Upgrade github.com/consensys/gnark/std/signature/ecdsa to version 0.14.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to missing scalar checks in the Verify and prepareVerification functions. An attacker can produce multiple valid signatures for the same message by manipulating the S value in EdDSA and ECDSA signatures, potentially enabling double spending or bypassing anti-replay mechanisms in protocols that derive nullifiers from signature components.