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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-4600

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.setPub

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
snyk

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n/a jsrsasign

  • 0 to < 11.1.1affected

n/a org.webjars.npm:jsrsasign

  • 0 to < *affected

References