Source: python-jwcrypto Version: 1.5.6-1.2 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for python-jwcrypto. CVE-2026-84185[0]: | A flaw was found in the jwcrypto library, which is used for | implementing Javascript Object Signing and Encryption (JOSE) | standards. The issue occurs when the library verifies a General JSON | Serialization JWS using a set of keys. Due to a coding error, the | library fails to correctly identify the specific key ID (kid) and | may instead accept a signature made by any valid key in the set. | This can allow an attacker with a valid key to bypass authorization | checks in applications that rely on the key ID to identify specific | tenants or users. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-84185 https://www.cve.org/CVERecord?id=CVE-2026-84185 [1] https://bugzilla.redhat.com/show_bug.cgi?id=2526729 [2] https://github.com/latchset/jwcrypto/security/advisories/GHSA-wwmx-rghj-gq83 [3] https://github.com/latchset/jwcrypto/commit/268f4bc5d46e05393fecbd2854074b11ab20cd65 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
