CVE-2026-4599 — n/a / jsrsasign

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
n/a / jsrsasign	affected 7.0.0 before 11.1.1
n/a / org.webjars.npm:jsrsasign	affected 8.0.12 before *

CWE

CWE-1023

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in jsrsasign. An attacker can exploit an incomplete comparison vulnerability in the getRandomBigIntegerZeroToMax and getRandomBigIntegerMinToMax functions. By manipulating incorrect comparison checks, an attacker can bias the Digital Signature Algorithm (DSA) nonces during signature generation. This allows the attacker to recover the private key, leading to a critical security compromise.