CVE-2025-57801 gnark is vulnerable to signature malleability in EdDSA and ECDSA due to missing scalar checks

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...