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CVE-2026-4599

High

High exploit probability or critical severity with a known exploit.

CVSS base
9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS — probability of exploitation (30 days)
0.5%
40.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-338
Published 2026-03-23 · modified 2026-09-10

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.

Affected

kjur

References

Official: NVD · CVE.org