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GHSA-28pv-f4g7-364j

Опубликовано: 10 окт. 2025
Источник: github
Github: Не прошло ревью
CVSS3: 6.5

Описание

python-jose thru 3.3.0 allows JWT tokens with 'alg=none' to be decoded and accepted without any cryptographic signature verification. A malicious actor can craft a forged token with arbitrary claims (e.g., is_admin=true) and bypass authentication checks, leading to privilege escalation or unauthorized access in applications that rely on python-jose for token validation. This issue is exploitable unless developers explicitly reject 'alg=none' tokens, which is not enforced by the library.

python-jose thru 3.3.0 allows JWT tokens with 'alg=none' to be decoded and accepted without any cryptographic signature verification. A malicious actor can craft a forged token with arbitrary claims (e.g., is_admin=true) and bypass authentication checks, leading to privilege escalation or unauthorized access in applications that rely on python-jose for token validation. This issue is exploitable unless developers explicitly reject 'alg=none' tokens, which is not enforced by the library.

EPSS

Процентиль: 20%
0.00064
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-269

Связанные уязвимости

CVSS3: 6.5
ubuntu
7 дней назад

python-jose thru 3.3.0 allows JWT tokens with 'alg=none' to be decoded and accepted without any cryptographic signature verification. A malicious actor can craft a forged token with arbitrary claims (e.g., is_admin=true) and bypass authentication checks, leading to privilege escalation or unauthorized access in applications that rely on python-jose for token validation. This issue is exploitable unless developers explicitly reject 'alg=none' tokens, which is not enforced by the library.

CVSS3: 6.5
nvd
7 дней назад

python-jose thru 3.3.0 allows JWT tokens with 'alg=none' to be decoded and accepted without any cryptographic signature verification. A malicious actor can craft a forged token with arbitrary claims (e.g., is_admin=true) and bypass authentication checks, leading to privilege escalation or unauthorized access in applications that rely on python-jose for token validation. This issue is exploitable unless developers explicitly reject 'alg=none' tokens, which is not enforced by the library.

CVSS3: 6.5
debian
7 дней назад

python-jose thru 3.3.0 allows JWT tokens with 'alg=none' to be decoded ...

EPSS

Процентиль: 20%
0.00064
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-269