CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, при специфични условия, с администраторски права и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално 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.
Засегнати продукти
- traefik traefik: < 2.11.42; >= 3.0.0-beta1, < 3.6.11; >= 3.7.0-ea.1, < 3.7.0-ea.3
- Red Hat Red Hat OpenShift Dev Spaces 3.27: от 1776718585 нататък
Вид слабост
История
- 27 март 2026 Публикувано
Други уязвимости в traefik traefik
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-33433
- https://nvd.nist.gov/vuln/detail/CVE-2026-33433
- https://github.com/traefik/traefik/security/advisories/GHSA-qr99-7898-vr7c
- https://github.com/traefik/traefik/releases/tag/v2.11.42
- https://github.com/traefik/traefik/releases/tag/v3.6.11
- https://github.com/traefik/traefik/releases/tag/v3.7.0-ea.3
- https://access.redhat.com/security/cve/CVE-2026-33433
- https://bugzilla.redhat.com/show_bug.cgi?id=2452289
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33433.json
- https://access.redhat.com/errata/RHSA-2026:10175