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CVE-2026-75509

joserfc

Descrição

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass an intended equality check and enabling issuer-validation bypass. This issue is fixed in version 1.7.3.

CVSS 6.5EPSS 0.091%Risco 0.66
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Publicação
2026-08-24 20:17:19
Versões afetadas
<1.7.3
Tipo
Biblioteca
Última alteração
2026-08-25 17:18:16
Vetor
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N