Uncaught Exception Affecting python-jwt package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.3% (21st percentile)

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  • Snyk IDSNYK-RHEL8-PYTHONJWT-20419102
  • published4 Oct 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-102265  (opens in a new tab)
CWE-248  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 python-jwt.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-jwt package and not the python-jwt package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, PyJWS._load in jwt/api_jws.py is affected because parser catches ValueError but not RecursionError. This occurs when a deeply nested token header reaches json.loads. As a result, RecursionError escapes the documented PyJWT error hierarchy. Consequently, an unauthenticated malformed token can cause a request-level failure and HTTP 500. This issue is fixed in version 2.14.0.

CVSS Base Scores

version 3.1