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CVE-2026-4601

HIGH

8.7

Description

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.

Details CVE

Score CVSS v3.18.7

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie3/23/2026

Derniere modification3/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

jsrsasign_project:jsrsasign

Faiblesses (CWE)

CWE-325

References

https://gist.github.com/Kr0emer/93789fe6efe5519db9692d4ad1dad586(report@snyk.io)

https://github.com/kjur/jsrsasign/commit/0710e392ec35de697ce11e4219c988ba2b5fe0eb(report@snyk.io)

https://github.com/kjur/jsrsasign/pull/645(report@snyk.io)

https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370941(report@snyk.io)

Correlations IOC

Aucune correlation enregistree

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