CVE-2026-90452 Improper certificate validation in Malcolm

Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the...

CVE-2026-90449 Missing Authentication for Critical Function in Malcolm

When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that interface without applying the gateway's own authentication requirement first. All access control for this administrative interface, which...

CVE-2026-90449 Missing Authentication for Critical Function in Malcolm

When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that interface without applying the gateway's own authentication requirement first. All access control for this administrative interface, which...

CVE-2026-90449

CVE-2026-90449 affects a reverse proxy/gateway in an ICS/OT deployment (per the referenced CISA advisory icsa-26-254-01 ). When a particular authentication mode is configured, the reverse proxy forwards requests to a bundled third-party administrative interface without first applying the gateway'...

CVE-2026-90449 Missing Authentication for Critical Function in Malcolm

When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that interface without applying the gateway's own authentication requirement first. All access control for this administrative interface, which...

CVE-2026-88879

A flaw was found in Traefik, an HTTP reverse proxy and load balancer. Due to a discrepancy in how Traefik and certain backend applications process HTTP header names, a remote attacker can smuggle specially crafted headers. This allows the attacker to bypass identity assertions made by Traefik,...

CVE-2026-90452: Improper Certificate Validation

Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the...

CVE-2026-90449: Missing Authentication for Critical Function

When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that interface without applying the gateway's own authentication requirement first. All access control for this administrative interface, which...

PT-2026-90521

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Requests sent from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange fail to verify the server...

PT-2026-90518

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description When a specific authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that...

GHSA-V67P-PHPQ-FC8X Traefik entrypoint header-name sanitization bypassed via request trailers

Summary Traefik's entrypoint defenses against spoofed trusted header names — aliasHeadersStrategy / underscoreHeadersStrategy in delete or reject mode, and the default forwardedHeaders stripping of client-supplied X-Forwarded- — scan req.Header only and never req.Trailer. An unauthenticated clien...

Traefik entrypoint header-name sanitization bypassed via request trailers

Summary Traefik's entrypoint defenses against spoofed trusted header names — aliasHeadersStrategy / underscoreHeadersStrategy in delete or reject mode, and the default forwardedHeaders stripping of client-supplied X-Forwarded- — scan req.Header only and never req.Trailer. An unauthenticated clien...

pomerium v0.33.3

Pomerium is an identity and context-aware reverse proxy. Pomerium builds secure, clientless connections to internal web apps and other services without a corporate VPN. Pomerium is: Easier with clientless access. Faster by being tunnel-free and deployed where your apps and services are. Safer...

CVE-2026-88011

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy because Go treats it as distinct from X-Authenticated-User...

CVE-2026-88009

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth,...

CVE-2026-88011 Traefik: ForwardAuth identity spoofing via dot-form header alias

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy because Go treats it as distinct from X-Authenticated-User...

CVE-2026-88011

Traefik 's ForwardAuth middleware is vulnerable to identity spoofing via dot-form header aliases (e.g. X.Authenticated.User). Go treats these as distinct from the canonical dash-form header, but backends such as PHP, CGI, WSGI, and NGINX collapse both into the same variable, allowing a permitted ...

CVE-2026-88011 Traefik: ForwardAuth identity spoofing via dot-form header alias

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy because Go treats it as distinct from X-Authenticated-User...

CVE-2026-88011

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy because Go treats it as distinct from X-Authenticated-User...

EUVD-2026-75584

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy because Go treats it as distinct from X-Authenticated-User...