What’s Vulnerable › Vulnerabilities

CVE-2024-42459: Elliptic's EDDSA missing signature length check

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-08-02 · updated 2026-06-17
• Weakness: CWE-347

Description

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Affected products

• Elliptic: 6.5.6
• Npm Elliptic: from 4.0.0 before 6.5.7 — fixed in 6.5.7

How to fix

Upgrade to a fixed version: Npm Elliptic 6.5.7. Check the vendor advisory for mitigations.

References

• https://github.com/indutny/elliptic/pull/317
• https://security.netapp.com/advisory/ntap-20241004-0005/

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