CVE-2026-49468: fallo crítico en BerriAI litellm
LiteLLM: Authentication Bypass via Host Header Injection
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
63Vexday Risk Score
Corrige pronto. Ella tiene exploit funcional público.
ssvc Attendcvss 9.5epss 3.0%
de la publicación al arma11 días
Publicada en NVD22 jun
1ª PoC+11d
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, a Host-header parsing flaw in the LiteLLM proxy could, under specific conditions, allow unauthenticated access to protected management routes. The auth layer derived the effective route from request.url.path in litellm/proxy/auth/auth_utils.py::get_request_route(), which Starlette reconstructs from the Host header. A crafted Host could therefore make the auth gate evaluate a different route from the one FastAPI dispatched. This vulnerability is fixed in 1.84.0.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Productos afectados
BerriAI · litellmPoCs públicas encontradas — 1
githubgithub.com/BiiTts/CVE-2026-49468-LiteLLM-Auth-Bypass★ 2⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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Referencias
https://access.redhat.com/security/cve/CVE-2026-49468https://bugzilla.redhat.com/show_bug.cgi?id=2491520https://github.com/BerriAI/litellm/releases/tag/v1.84.0https://github.com/BerriAI/litellm/security/advisories/GHSA-4xpc-pv4p-pm3whttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49468.json