What’s Vulnerable › Vulnerabilities

CVE-2024-23342: python-ecdsa vulnerable to Minerva attack on P-256

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-01-23 · updated 2026-06-17
• Weakness: CWE-203

Description

The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve Diffie-Hellman). Versions 0.18.0 and prior are vulnerable to the Minerva attack. As of time of publication, no known patched version exists.

Affected products

• tlsfuzzer python-ecdsa: through 0.18.0

References

• https://github.com/tlsfuzzer/python-ecdsa/blob/master/SECURITY.md
• https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-wj6h-64fc-37mp
• https://minerva.crocs.fi.muni.cz/
• https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/
• https://github.com/tlsfuzzer/python-ecdsa/blob/master/SECURITY.md
• https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-wj6h-64fc-37mp
• https://minerva.crocs.fi.muni.cz/
• https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/

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