---
cve: "CVE-2026-49468"
severity: "CRITICAL"
cvss: 9.5
epss: "59%"
vendor: "berriai"
kev: false
exploited: false
published: "2026-06-22 21:16:25"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T21:53:04+02:00"
---

# CVE-2026-49468

> 9.5 CRITICAL · 🧪 PoC

## Beschreibung

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-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- e1fc955464bf493c15aef08f98e0e22bdf24d4cf (Commit)

## Referenzen

- <https://github.com/BerriAI/litellm/security/advisories/GHSA-4xpc-pv4p-pm3w>
- <https://github.com/BerriAI/litellm/releases/tag/v1.84.0>
- <https://access.redhat.com/security/cve/CVE-2026-49468>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2491520>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49468.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-49468) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_