CVE-2026-4599

CriticalCVSS 9.1/10Last modified Sep 10, 2026

Description

Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Missing Factors via the getRandomBigIntegerZeroToMax and getRandomBigIntegerMinToMax functions in src/crypto-1.1.js; an attacker can recover the private key by exploiting the incorrect compareTo checks that accept out-of-range candidates and thus bias DSA nonces during signature generation.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-1023CWE-338

Affected software

No affected versions have been published.

Timeline

Published
Mar 23, 2026
Last modified
Sep 10, 2026
NVD status
Modified

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CVE-2026-4599: Critical severity, CVSS 9.1 | Vulnix