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CVE-2022-29217

nvd nist
Published: May 24, 2022Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT library requires that the application chooses what algorithms are supported. The application can specify `jwt.algorithms.get_default_algorithms()` to get support for all algorithms, or specify a single algorithm. The issue is not that big as `algorithms=jwt.algorithms.get_default_algorithms()` has to be used. Users should upgrade to v2.4.0 to receive a patch for this issue. As a workaround, always be explicit with the algorithms that are accepted and expected when decoding.

Affected (3)

1 product
Pyjwt
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
From 1.5.0 to 2.4.0
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Version 35
Version 36

References (11)

Source: security-advisories@github.com
PatchThird Party Advisory
Source: security-advisories@github.com
Release NotesThird Party Advisory
Source: security-advisories@github.com
Issue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party Advisory

Timeline

No history available yet.