PT-2026-44398 · Pypi+1 · Pyjwt+1
CVSS v3.1
7.4
High
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
PyJWT versions prior to 2.13.0
Description
PyJWT is a JSON Web Token implementation in Python. When the verifier decodes JSON Web Tokens while supporting both asymmetric and HMAC algorithms, the library fails to validate the use of JSON Web Keys in the HMAC algorithm. This allows an attacker to use the issuer public key as the secret key for the HMAC algorithm.
Recommendations
Update to version 2.13.0.
Exploit
Fix
Improper Verification of Cryptographic Signature
Improper Authentication
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Related Identifiers
Affected Products
Pyjwt
Rocky Linux