CVE-2022-39227
python-jwt: token forgery with new claims
Severity
ImportantRed Hat Product Security
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 · 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-290 · Authentication Bypass by Spoofing