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critical advisory

jsrsasign DSA Nonce Bias Vulnerability (CVE-2026-4599)

jsrsasign versions 7.0.0 through 11.1.1 are vulnerable to a DSA nonce bias due to incomplete comparison checks in the getRandomBigIntegerZeroToMax and getRandomBigIntegerMinToMax functions, potentially allowing an attacker to recover the private key.

jsrsasign DSA nonce-bias cryptography CVE-2026-4599
2r 1t
critical advisory

jsrsasign DSA Signature Forgery Vulnerability (CVE-2026-4600)

The jsrsasign package before version 11.1.1 is vulnerable to cryptographic signature forgery (CVE-2026-4600) due to improper DSA domain-parameter validation, allowing attackers to forge DSA signatures or X.509 certificates, potentially leading to unauthorized access or code execution.

jsrsasign signature-forgery dsa cve-2026-4600
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