CVE Watch15 jul 2026

CVE-2026-4600

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parame

CVSS

7.4

Alto

EPSS

0.2%

p13

KEV

—

Exploit Today

0-100

Publicado: 23 mar 2026 · Última mod.: 15 jul 2026 · CWE-347

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-06-302026-07-18

Descripción técnica

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.

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