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CVE-2026-33433

Опубликовано: 27 мар. 2026
Источник: debian
EPSS Низкий

Описание

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when `headerField` is configured with a non-canonical HTTP header name (e.g., `x-auth-user` instead of `X-Auth-User`), an authenticated attacker can inject their own canonical version of that header to impersonate any identity to the backend. The backend receives two header entries — the attacker-injected canonical one is read first, overriding Traefik's non-canonical write. Versions 2.11.42, 3.6.11, and 3.7.0-ea.3 patch the issue.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
traefikitppackage

EPSS

Процентиль: 38%
0.00469
Низкий

Связанные уязвимости

CVSS3: 7.7
redhat
5 месяцев назад

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when `headerField` is configured with a non-canonical HTTP header name (e.g., `x-auth-user` instead of `X-Auth-User`), an authenticated attacker can inject their own canonical version of that header to impersonate any identity to the backend. The backend receives two header entries — the attacker-injected canonical one is read first, overriding Traefik's non-canonical write. Versions 2.11.42, 3.6.11, and 3.7.0-ea.3 patch the issue.

CVSS3: 8.8
nvd
5 месяцев назад

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when `headerField` is configured with a non-canonical HTTP header name (e.g., `x-auth-user` instead of `X-Auth-User`), an authenticated attacker can inject their own canonical version of that header to impersonate any identity to the backend. The backend receives two header entries — the attacker-injected canonical one is read first, overriding Traefik's non-canonical write. Versions 2.11.42, 3.6.11, and 3.7.0-ea.3 patch the issue.

github
5 месяцев назад

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

CVSS3: 8.8
fstec
больше 1 года назад

Уязвимость обратного прокси сервера Containous Traefik, связанная с обходом аутентификации посредством спуфинга, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

EPSS

Процентиль: 38%
0.00469
Низкий