NetSight
IP …
high8.7

CVE-2026-4601

Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash process in the DSA sig…

Impact

Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash process in the DSA signing implementation. An attacker can recover the private key by forcing r or s to be zero, so the library emits an invalid signature without retrying, and then solves for x from the resulting signature.

Affected packages

EcosystemPackageAffectedFixed in
npmjsrsasign< 11.1.111.1.1

Affected products

VendorProductAffected versions
KjurJsrsasign
before 11.1.1

Weakness classification

CWE-325

References