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.
History

Mon, 23 Mar 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Jsrsasign Project
Jsrsasign Project jsrsasign
CPEs cpe:2.3:a:jsrsasign_project:jsrsasign:*:*:*:*:*:node.js:*:*
Vendors & Products Jsrsasign Project
Jsrsasign Project jsrsasign

Mon, 23 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 23 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
Title jsrsasign: jsrsasign: Private key recovery via incomplete comparison checks biasing DSA nonces
Weaknesses CWE-338
References
Metrics threat_severity

None

threat_severity

Important


Mon, 23 Mar 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Kjur
Kjur jsrsasign
Vendors & Products Kjur
Kjur jsrsasign

Mon, 23 Mar 2026 05:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-1023
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2026-03-23T05:00:12.522Z

Updated: 2026-03-23T14:39:45.496Z

Reserved: 2026-03-22T16:25:57.565Z

Link: CVE-2026-4599

cve-icon Vulnrichment

Updated: 2026-03-23T14:39:42.517Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-23T06:16:21.513

Modified: 2026-03-23T16:17:45.400

Link: CVE-2026-4599

cve-icon Redhat

Severity : Important

Publid Date: 2026-03-23T05:00:12Z

Links: CVE-2026-4599 - Bugzilla