LiteLLM: Authentication Bypass via Host Header Injection

Impact 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/authutils.py::getrequestroute, which Starlette reconstructs...

User Impersonation

Overview litellm is a Library to easily interface with LLM API providers Affected versions of this package are vulnerable to User Impersonation via manipulation of the Host header during HTTP requests. An attacker can gain unauthorized access to protected management routes by crafting a malicious...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the SNICheck process. An attacker can gain unauthorized access to protected backends by completing a TLS handshake using a permissive SNI and then sending an HTTP Host header...

Authentication Bypass Using an Alternate Path or Channel

Overview github.com/traefik/traefik/v2/pkg/server is a server package for traefik, a cloud native edge router. Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the SNICheck process. An attacker can gain unauthorized access to protecte...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the SNICheck process. An attacker can gain unauthorized access to protected backends by completing a TLS handshake using a permissive SNI and then sending an HTTP Host header...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the SNICheck process. An attacker can gain unauthorized access to protected backends by completing a TLS handshake using a permissive SNI and then sending an HTTP Host header...

vLLM: OpenAI auth bypass

Summary A vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware, which was discovered during @x41sec's source code audit. It allows to use the API without providing the configured VLLMAPIKEY or...

HTTP Request Smuggling

Overview vllm is an A high-throughput and memory-efficient inference and serving engine for LLMs Affected versions of this package are vulnerable to HTTP Request Smuggling via improper validation of the Host header in the request scope. An attacker can gain unauthorized access to API endpoints by...

GHSA-94F4-HR76-P5J6 vLLM: OpenAI auth bypass

Summary A vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware, which was discovered during @x41sec's source code audit. It allows to use the API without providing the configured VLLMAPIKEY or...

GHSA-2PVR-WF23-7PC7 Astro: Host header SSRF in prerendered error page fetch

Summary Astro SSR apps with prerendered error pages /404 or /500 using export const prerender = true fetch those pages over HTTP at runtime when an error occurs. The URL for this fetch is derived from request.url, which in turn gets its origin from the incoming Host header. When the Host header i...

Astro: Host header SSRF in prerendered error page fetch

Summary Astro SSR apps with prerendered error pages /404 or /500 using export const prerender = true fetch those pages over HTTP at runtime when an error occurs. The URL for this fetch is derived from request.url, which in turn gets its origin from the incoming Host header. When the Host header i...

NPM: Astro: Host header SSRF in prerendered error page fetch

NPM: Astro: Host header SSRF in prerendered error page fetch vulnerability discovered by ? in WordPress Npm astro versions 6.4.6...

PT-2026-50152

Name of the Vulnerable Software and Affected Versions LiteLLM versions prior to 1.84.0 Description A Host-header parsing flaw in the LiteLLM proxy allows unauthenticated access to protected management routes. The authentication layer derives the effective route from request.url.path in the get...

PT-2026-49740

Name of the Vulnerable Software and Affected Versions Astro versions prior to 6.4.6 Description Astro SSR applications using prerendered error pages, such as '/404' or '/500' with export const prerender = true, fetch these pages over HTTP at runtime during an error. The fetch URL is derived from...

PT-2026-50144

Name of the Vulnerable Software and Affected Versions vLLM versions 0.3.0 through 0.21.0 Description An authentication bypass exists in the OpenAI API AuthenticationMiddleware due to improper trust in the reconstructed URL path from the ASGI scope. The url path is derived from a URL object...

GHSA-XRXM-CP7J-8XF6 @angular/platform-server: URL Parser Differential leading to SSRF Allowlist Bypass

An issue in the @angular/platform-server package allows remote attackers to bypass host allowlist constraints and direct server-side outgoing requests to arbitrary external endpoints. This occurs due to a parser differential between the strict WHATWG URL parser used for allowlist validation and t...

CVE-2026-53523

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.2.0, the getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero...

Server-side Request Forgery (SSRF)

Overview apostrophe is a content management system CMS for Node.js. It supports in-context editing, schema-driven content types, flexible widgets and a great deal more. This module contains everything necessary to build a website with ApostropheCMS. Affected versions of this package are vulnerabl...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the getRedirectURL function. An attacker can redirect users to arbitrary domains by supplying a crafted Host header during the OAuth2 authentication process. Remediation Upgrade...

CVE-2026-53607

ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, when prettyUrls: true is enabled on @apostrophecms/file a documented SEO feature for serving uploaded files at clean URLs, the public pretty-URL handler builds the upstream URL using the raw...