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CVE-2026-4602

HIGH

7.5

Description

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative exponent.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/23/2026

Derniere modification3/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

jsrsasign_project:jsrsasign

Faiblesses (CWE)

CWE-681

References

https://gist.github.com/Kr0emer/7ecd2be7d17419e4677315ef3758faf5(report@snyk.io)

https://github.com/kjur/jsrsasign/commit/5ea1c32bb2aa894b4bd29849839afe4f98728195(report@snyk.io)

https://github.com/kjur/jsrsasign/pull/650(report@snyk.io)

https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15371175(report@snyk.io)

Correlations IOC

Aucune correlation enregistree

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