CVE-2026-48020 Traefik StripPrefix Route-Level Auth Bypass via Path Normalization

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.48, 3.6.19, and 3.7.3, there is a high severity vulnerability in Traefik's StripPrefix middleware that allows an unauthenticated attacker to bypass route-level authentication and authorization. When a public router matches on a...

CVE-2026-48020

Traefik CVE-2026-48020 describes an authentication bypass via StripPrefix Route-Level Auth Bypass. Prior to fixes, when a public router uses PathPrefix with StripPrefix, requests containing .. or %2e%2e could match the public route, then after prefix stripping and path normalization, resolve to a...

Traefik has a StripPrefix Route-Level Auth Bypass via Path Normalization

Summary There is a high severity vulnerability in Traefik's StripPrefix middleware that allows an unauthenticated attacker to bypass route-level authentication and authorization. When a public router matches on a PathPrefix rule and applies the StripPrefix middleware, a request path containing...

Fission router exposes /fission-function/<ns>/<name> on its public listener, allowing invocation of any function without an HTTPTrigger

Summary The Fission router registers an internal-style route — /fission-function/ and /fission-function// — for every Function object, independent of whether any HTTPTrigger exists for that function. The route was mounted on the same listener as user-defined HTTPTriggers svc/router, port 8888, so...

PT-2026-42589

Summary The Fission router registers an internal-style route — /fission-function/ and /fission-function// — for every Function object, independent of whether any HTTPTrigger exists for that function. The route was mounted on the same listener as user-defined HTTPTriggers svc/router, port 8888, so...

PT-2026-42685

Name of the Vulnerable Software and Affected Versions Fission versions prior to 1.23.0 Description The Fission router registers internal routes '/fission-function/' and '/fission-function//' for every function object, regardless of whether an HTTPTrigger exists. Because these routes are mounted o...

GHSA-RGJ7-VG8V-J4WR Ech0's Unauthenticated Like Endpoint Enables Arbitrary Engagement Metric Inflation

Summary No authentication is required to invoke PUT /api/echo/like/:id. The handler is registered on the public router group. The service increments favcount for the given echo without checking identity, without a per-user limit, and without CSRF tokens. A remote client can arbitrarily inflate li...

Ech0's Unauthenticated Like Endpoint Enables Arbitrary Engagement Metric Inflation

Summary No authentication is required to invoke PUT /api/echo/like/:id. The handler is registered on the public router group. The service increments favcount for the given echo without checking identity, without a per-user limit, and without CSRF tokens. A remote client can arbitrarily inflate li...