Incomplete Comparison with Missing Factors Affecting jsrsasign package, versions >=7.0.0 <11.1.1
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Test your applications- Snyk IDSNYK-JS-JSRSASIGN-15370939
- published22 Mar 2026
- disclosed17 Feb 2026
- creditKr0emer
Introduced: 17 Feb 2026
CVE-2026-4599 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade jsrsasign to version 11.1.1 or higher.
Overview
jsrsasign is a free pure JavaScript cryptographic library.
Affected versions of this package 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.