EUVD-2026-68335

Permissive Regular Expression vulnerability in ash-project ashphoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header. AshPhoenix.Helpers.getsubdomain/2 stripped the root domain with String.replacehost, r/.?roothost/, "". Th...

CVE-2026-82726 AshPhoenix get_subdomain maps a crafted or differently-cased Host header to an arbitrary tenant

Permissive Regular Expression vulnerability in ash-project ashphoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header. AshPhoenix.Helpers.getsubdomain/2 stripped the root domain with String.replacehost, r/.?roothost/, "". Th...

CVE-2026-82726

CVE-2026-82726 is a permissive regular expression vulnerability in ash-project ash_phoenix (versions 2.1.26 through before 2.3.25). The function AshPhoenix.Helpers.get_subdomain/2 interpolated the root host raw into a regex, turning each dot into a wildcard and allowing metacharacters as pattern ...

CVE-2026-49468-LiteLLM-Auth-Bypass

CVE-2026-49468 — Bypass de Autenticación sin Autenticación en LiteLLM por Confusión de Ruta vía Host-Header Bypass de autenticación/autorización previa a la autenticación en el proxy LiteLLM BerriAI. Un único encabezado Host manipulado hace que el proxy evalúe su decisión de autenticación contra...

CVE-2024-34328

CVE-2024-34328 Redirección Abierta mediante Cabecera Host 📝 Resumen Título de la Vulnerabilidad : Redirección Abierta mediante Cabecera Host Producto : Sielox AnyWare Versión Afectada : 2.1.2 CVE ID : CVE-2024-34328 Gravedad : Media Vector de Ataque : Remoto Impacto : Redirección Abierta / Phishi...

poc-h2-CVE-2026-71554

CVE-2026-71554 - h2 Duplicate Host Header Request Smuggling Primitive This is my first CVE, and I have released this PoC to document the finding and help others understand and reproduce it. CVE: CVE-2026-71554 GHSA: GHSA-6hr6-w5qg-qmwg Affected: h2 = 4.4.0 Fixed: h2 4.4.1 Severity: Medium CWE-444...

starlette-host-header-lab

Starlette Host-Header URL Confusion Lab X41-2026-002 Un laboratorio formativo containerizzato e autonomo che riproduce la vulnerabilità di bypass dell'autenticazione in Starlette, divulgata da X41 D-Sec. Advisory: X41-2026-002 GHSA: GHSA-86qp-5c8j-p5mr CWE: 436 — Conflitto di interpretazione /...

BadHost-CVE-2026-48710-Exploit

BadHost — CVE-2026-48710 Scanner Scanner solo di rilevamento per il bypass di autenticazione BadHost in Starlette / FastAPI — dove il middleware di autenticazione legge request.url.path invece di request.scope"path", consentendo a un'intestazione Host manipolata di introdurre un percorso consenti...

CVE-2026-82270

Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/ route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal service...

EUVD-2026-42930

9router: Unauthenticated /v1 proxy access via Host-header spoofing → open AI relay + SSRF...

NPM: 9router: Unauthenticated `/v1` proxy access via `Host`-header spoofing → open AI relay + SSRF

NPM: 9router: Unauthenticated /v1 proxy access via Host-header spoofing → open AI relay + SSRF vulnerability discovered by ? in WordPress Npm 9router versions 0.5.2...

CVE-2026-82270 Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/*

Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/ route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal service...

CVE-2026-82270 Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/*

Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/ route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal service...

CVE-2026-81092

mcp-go accepted requests on its HTTP transports without checking the Host header. StreamableHTTPServer.ServeHTTP in server/streamablehttp.go and SSEServer.ServeHTTP in server/sse.go served any request arriving over a loopback connection regardless of the host it named, and the SSE transport's...

CVE-2026-75871

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an...

EUVD-2026-67088

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an...

CVE-2026-75871

GitLab AI Gateway (versions 18.10–19.0.12, 19.1–19.1.7, and 19.2–19.2.2) is affected by a Server-Side Request Forgery (SSRF) vulnerability. An authenticated user with Duo Agent Platform access could craft an inline flow configuration that overrides the HTTP Host header, redirecting outbound model...

CVE-2026-75871 Server-Side Request Forgery (SSRF) in GitLab AI Gateway

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an...

CVE-2026-81102 Dropbox Dash MCP Server DNS Rebinding via Missing Host Header Validation

The Dash MCP server bound its listener to the loopback address but never checked the host a request named. src/mcpserverdash.py constructed the server for its network mode with the interface restricted to loopback and no transport-security settings, so a name that had been pointed at the loopback...

CVE-2026-81102

CVE-2026-81102 affects the Dropbox Dash MCP server (src/mcp_server_dash.py), which in its network mode bound its listener to the loopback address but never validated the Host header , and included no transport-security settings. This allowed a DNS rebinding attack: a malicious page in a visitor's...