CVE-2026-4600

ADVISORY - github

Summary

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA signatures or X.509 certificates that X509.verifySignature() accepts by supplying malicious domain parameters such as g=1, y=1, and a fixed r=1, which make the verification equation true for any hash.

EPSS Score⁠: 0.0001 (0.011)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-347⁠

Improper Verification of Cryptographic Signature

ADVISORY - github

CWE-347⁠

Improper Verification of Cryptographic Signature

ADVISORY - redhat

CWE-347⁠

Improper Verification of Cryptographic Signature

Impacted images

Advisories

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