CVE Watch16 jul 2026

CVE-2026-4601

Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash pro

CVSS

8.7

Alto

EPSS

0.3%

p22

KEV

—

Exploit Today

0-100

Publicado: 23 mar 2026 · Última mod.: 16 jul 2026 · CWE-325

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-06-302026-07-16

Descripción técnica

Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash process in the DSA signing implementation. An attacker can recover the private key by forcing r or s to be zero, so the library emits an invalid signature without retrying, and then solves for x from the resulting signature.

Referencias oficiales

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