Vulnerability · Published Sep 28, 2023 · Assigned by mitre
CVE-2023-44273
Critical 9.8
In plain English
A critical-severity security flaw in the github.com/Consensys/gnark-crypto package (Go). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.1%top 35.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/Consensys/gnark-crypto | 0.12.0 | GHSA-9xfq-8j3r-xp5g |
| Go | github.com/consensys/gnark-crypto | 0.12.0 | GHSA-9xfq-8j3r-xp5g |
| Go | github.com/consensys/gnark-crypto | 0.12.0 | GHSA-fr8m-434r-g3xp |
| Go | github.com/consensys/gnark-crypto | 0.12.0 | GO-2023-2096 |
| Go | github.com/consensys/gnark-crypto | 0.12.0 | GO-2025-4027 |