7.5 HIGH
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): LOW
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): HIGH
- Availability impact (A): NONE
Activity log
- Created suggestion
PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)
PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token instead of rejecting it. This violates the MUST requirement in the RFC. This vulnerability is fixed in 2.12.0.
References
-
https://github.com/jpadilla/pyjwt/security/advisories/GHSA-752w-5fwx-jx9f x_refsource_CONFIRM
Affected products
- ==< 2.12.0
Matching in nixpkgs
pkgs.python312Packages.pyjwt
JSON Web Token implementation in Python
pkgs.python313Packages.pyjwt
JSON Web Token implementation in Python
pkgs.python314Packages.pyjwt
JSON Web Token implementation in Python
Package maintainers
-
@prikhi Pavan Rikhi <pavan.rikhi@gmail.com>