CVE Database›Document archive›CVE-2022-39227

CVE-2022-39227

python-jwt: token forgery with new claims

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Severity

Important

Red Hat Product Security

9.1

CVSS 3.1

Review impact separately from score.

Published · September 23, 2022

Updated · November 21, 2025

Description

A flaw was found in python-jwt, where it was subject to Authentication Bypass vulnerability by spoofing, resulting in identity spoofing, session hijacking, or authentication bypass. This flaw allows an attacker who obtains a JWT to arbitrarily forge its contents without knowing the secret key. Depending on the application, the attacker can spoof other users' identities, hijack their sessions, or bypass authentication.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE-290 · Authentication Bypass by Spoofing