Elliptic's ECDSA missing check for whether leading bit of r and s is zero

Description

In the Elliptic package 6.5.6 for Node.js, ECDSA signature malleability occurs because there is a missing check for whether the leading bit of r and s is zero.

Recommendation

Update the elliptic package to the latest compatible version. Followings are version details:

• Affected version(s): >= 2.0.0, <= 6.5.6
• Patched version(s): 6.5.7

References

• GHSA-977x-g7h5-7qgw
• security.netapp.com
• CVE-2024-42460
• CWE-130
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Elliptic's EDDSA missing signature length check - CVE-2024-42459
• Valid ECDSA signatures erroneously rejected in Elliptic - CVE-2024-48948
• Unwanted access to the entire file system vulnerability due to a missing check in `staticFiles` HTTP handler - CVE-2025-27098
• uuid: Missing buffer bounds check in v3/v5/v6 when buf is provided - CVE-2026-41907

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Tags:

npm

elliptic