CVE-2026-54588 Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.

Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled HTTPHOST request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An...

CVE-2026-54588 Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.

Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled HTTPHOST request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An...

CVE-2026-54588 Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.

Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled HTTPHOST request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An...

CVE-2026-54588

Poweradmin (for PowerDNS) is affected by a Host Header Injection vulnerability in auth flows. Versions prior to 4.2.4 and 4.3.3 use the HTTP_HOST header as the authoritative source for building OIDC redirect_uri, SAML ACS/SLO URLs, and logout redirects without validation. An unauthenticated attac...

GHSA-JC3J-X6PG-4HMV Algernon: Host header path traversal in --domain mode reads files and runs Lua from parent dir

Summary When algernon is started with --domain or --letsencrypt, which silently turns on --domain at engine/flags.go:372, the request handler resolves the served directory by joining the configured --dir with the value of the client-supplied Host header. The join is performed by filepath.Join wit...

Algernon: Host header path traversal in --domain mode reads files and runs Lua from parent dir

Summary When algernon is started with --domain or --letsencrypt, which silently turns on --domain at engine/flags.go:372, the request handler resolves the served directory by joining the configured --dir with the value of the client-supplied Host header. The join is performed by filepath.Join wit...

EUVD-2026-31881

Algernon: Host header path traversal in --domain mode reads files and runs Lua from parent dir...

CVE-2026-50221

In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers X-Container-Host, X-Container-Device, X-Delete-At-Host, X-Delete-At-Device from client requests before forwarding them to object-servers. An authenticated user with write access can inject these headers to...

BIT-APISIX-2026-48895 Apache APISIX: Cas-auth Host header influence on CAS service URL

URL Redirection to Untrusted Site 'Open Redirect' vulnerability in Apache APISIX. The attacker could manipulate some client headers to perform an open-redirect, to potentially expose the session token. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are recommended to upgrade t...

PT-2026-51607

Name of the Vulnerable Software and Affected Versions Poweradmin versions prior to 4.2.4 Poweradmin versions prior to 4.3.3 Description Poweradmin is a web-based DNS administration tool for PowerDNS server. The software uses the attacker-controlled HTTP HOST request header as the authoritative...

Denial of service via malformed Host header

Impact If this library is used to implement a WebSocket server on top of a TCP server, by using the WebSocket::Driver.server method, then a client can cause the server to crash by sending a Host header that is not a valid host:port string. When this happens, a URI::InvalidURIError exception is...

CVE-2026-48491: Authentication Bypass Using an Alternate Path or Channel

Traefik is an HTTP reverse proxy and load balancer. From 3.7.0 until 3.7.3, there is a high severity vulnerability in Traefik's domain-fronting protection SNICheck that allows an unauthenticated client to bypass mutual TLS enforced through wildcard router TLSOptions. When a router uses a wildcard...

Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack

Summary The Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. CVE-2026-32632 patched in 4.5.2 added TrustedHostMiddleware to the REST/WebUI server; the MCP server has had equivalent protectio...

GHSA-W856-8P3R-P338 Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack

Summary The Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. CVE-2026-32632 patched in 4.5.2 added TrustedHostMiddleware to the REST/WebUI server; the MCP server has had equivalent protectio...

CVE-2026-49468 LiteLLM: Authentication Bypass via Host Header Injection

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...

CVE-2026-49468 LiteLLM: Authentication Bypass via Host Header Injection

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...

CVE-2026-49468 LiteLLM: Authentication Bypass via Host Header Injection

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...

CVE-2026-49468

LiteLLM is a proxy server (AI Gateway) for calling LLM APIs. A host-header parsing flaw could allow authentication bypass by making the auth gate evaluate a different route than dispatched, effectively bypassing access controls under specific conditions. The issue is mitigated by upgrading to 1.8...

CVE-2026-54299

Astro is a web framework. Prior to 6.4.6, 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...

CVE-2026-55602

http-proxy-middleware is node.js http-proxy middleware. From 0.16.0 until 2.0.10, 3.0.6, and 4.1.0, http-proxy-middleware documents router proxy-table entries as host, path, or host+path selectors, but the host+path implementation uses unanchored substring matching on attacker-controlled request...