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EXPOSURES › CVE-2026-4600

CVE-2026-4600

HIGH
DETAIL
SourceNVD · cve Published2026-03-23 CVSS7.4 Referencehttps://nvd.nist.gov/vuln/detail/CVE-2026-4600 ↗
SHAME 25/100

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA signat

▸ RECOMMENDED ACTION  Patch the affected products and confirm your instances are covered.

PLAYERS IMPLICATED
kjur · vendorjsrsasign · product
DESCRIPTION

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA signatures or X.509 certificates that X509.verifySignature() accepts by supplying malicious domain parameters such as g=1, y=1, and a fixed r=1, which make the verification equation true for any hash.

AFFECTED FEDRAMP PRODUCTS · 0
No correlated FedRAMP products.