CVE-2026-63439

The 2FAuth web application is vulnerable to authentication bypass in versions prior to 8.0.0 . When the AUTHENTICATION_GUARD=reverse-proxy-guard setting is enabled, the ReverseProxyGuard::user() function fails to verify that the request originated from a trusted proxy. This allows a remote client...

CVE-2026-63439 2FAuth: Reverse Proxy Guard Trusts Client-Supplied Headers Without Proxy Verification

2FAuth is a web app to manage Two-Factor Authentication 2FA accounts and generate their security codes. Prior to 8.0.0, when AUTHENTICATIONGUARD=reverse-proxy-guard is enabled, ReverseProxyGuard::user reads the default REMOTEUSER identity header, or a custom identity header selected by the...

EUVD-2026-118492

2FAuth is a web app to manage Two-Factor Authentication 2FA accounts and generate their security codes. Prior to 8.0.0, when AUTHENTICATIONGUARD=reverse-proxy-guard is enabled, ReverseProxyGuard::user reads the default REMOTEUSER identity header, or a custom identity header selected by the...

ats-authproxy-prefix

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · ats-authproxy-prefix ats-authproxy-prefix Class: Privilege leftover Reach: Remote Apache Traffic Server 10.2.0 b1df7334 - Apache Software Foundation authproxy --forward-header-prefix copies identity fields from a 2xx...

CVE-2026-86863

A flaw was found in pgAdmin 4. When the 'webserver' authentication source is enabled, a remote attacker can bypass authentication by supplying a client-controlled identity header. This allows the attacker to authenticate as any user, including an Administrator, without providing valid credentials...

[SECURITY] [DSA 6429-1] caddy security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6429-1 [email protected] https://www.debian.org/security/ Aron Xu August 11, 2026 https://www.debian.org/security/faq -...

SUSE CVE-2026-52845

Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, forwardauth copyheaders deletes the exact client-supplied identity header before copying the trusted value from the auth gateway. But when the request later goes through phpfastcgi, Caddy normalizes HTTP headers int...

CVE-2026-49331 Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication skip-auth-regex, the proxy forwards client-supplied identity headers X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token to the upstream application without stripping them. An unauthenticated attacke...

CVE-2026-49331

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication skip-auth-regex, the proxy forwards client-supplied identity headers X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token to the upstream application without stripping them. An unauthenticated attacke...

CVE-2026-49331: Insufficient Verification of Data Authenticity

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication skip-auth-regex, the proxy forwards client-supplied identity headers X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token to the upstream application without stripping them. An unauthenticated attacke...

EUVD-2026-49767

A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys X-Forwarded-User but does not strip underscore-variant keys XForwardedUser from incoming requests. WSGI and PHP frameworks normalize both variants to the same variable, allowing a...

PT-2026-65454

Name of the Vulnerable Software and Affected Versions openshift/oauth-proxy affected versions not specified Description A flaw exists where the proxy sets authenticated identity headers using dash-variant keys, such as 'X-Forwarded-User', but fails to strip underscore-variant keys, such as 'X...

CVE-2026-49332: Interpretation Conflict

A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys X-Forwarded-User but does not strip underscore-variant keys XForwardedUser from incoming requests. WSGI and PHP frameworks normalize both variants to the same variable, allowing a...

EUVD-2026-42636

Open WebUI: Terminal proxy forwards a spoofable, integrity-unbound user identity to the upstream X-User-Id header and wsterminal sessionid query injection...

PT-2026-68942

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-qq9q-x9w4-chhj. This link is maintained to preserve external references. Original Description Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API...

CVE-2026-65601: Incorrect Authorization

Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules.backendRefs.filters.extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route auth...

CVE-2026-12281 Shibboleth < 2.5.4 - Unauthenticated Administrator Account Creation via Identity Header Spoofing

The Shibboleth WordPress plugin before 2.5.4 does not fail closed when its HTTP header identity mode is enabled without an anti-spoofing key, treating any request that carries identity headers as an authenticated session without verifying them. On a deployment where untrusted client headers reach...

CVE-2026-12281

The Shibboleth WordPress plugin before version 2.5.4 is vulnerable to unauthenticated account creation due to a failure to fail closed when the HTTP header identity mode is active without an anti-spoofing key. The plugin treats any request containing identity headers as an authenticated session w...

9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

Summary The 9router dashboard login rate limiter derives the client identity from the attacker-controlled X-Forwarded-For HTTP header. When 9router is directly exposed, or deployed behind a reverse proxy that does not overwrite untrusted forwarding headers, a remote attacker can rotate the...

CVE-2026-54763 Traefik: headerField underscore-variant identity spoofing in BasicAuth / DigestAuth / ForwardAuth

Traefik is an HTTP reverse proxy and load balancer. Prior to v2.11.51, v3.6.22, and v3.7.6, Traefik's BasicAuth, DigestAuth, and ForwardAuth middlewares strip canonical-cased spoofed identity headers before writing Traefik's own value, but do not account for underscore-variant header names, which...