CVE-2026-65600 Traefik before v2.11.52 Authentication Bypass via ReplacePathRegex

Traefik versions = v3.6.0 = v3.7.0 = v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator e.g. regex "^/api.", replacement "/$1...

CVE-2026-65600

Traefik versions = v3.6.0 = v3.7.0 = v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator e.g. regex "^/api.", replacement "/$1...

CVE-2026-65600

Traefik contains an authentication bypass in the ReplacePathRegex middleware for certain versions. Vulnerable were Traefik builds with ReplacePathRegex configured to capture user-controlled path segments without a mandatory path separator, allowing un-normalized paths (e.g., /api../admin) to bypa...

PT-2026-63358

Traefik versions = v3.6.0 = v3.7.0 = v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator e.g. regex "^/api.", replacement "/$1...

PT-2026-63359

Name of the Vulnerable Software and Affected Versions Traefik versions 3.7.0 through 3.7.6 Description A namespace confusion issue exists in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules.backendRefs.filters.extensionRef, the system incorrectly uses the backend Service...

PT-2026-63360

Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references the allowlist was only enforced for HTTP serversTransport references. A low-privileged Kubernetes user in a namespace not listed in...

traefik2-2.11.52-1.1 on GA media (moderate)

traefik2-2.11.52-1.1 on GA media Announcement ID: openSUSE-SU-2026:11243-1 Rating: moderate Cross-References: CVE-2026-54763 CVE-2026-54764 CVSS scores: CVE-2026-54763 SUSE : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2026-54763 SUSE : 7.8...

OPENSUSE-SU-2026:11251-1 traefik-3.7.7-1.1 on GA media

These are all security issues fixed in the traefik-3.7.7-1.1 package on the GA media of openSUSE Tumbleweed...

GHSA-XCGV-8MV7-V8C7 vulnerabilities

Vulnerabilities for packages: hubble, terraform-fips, apko-fips, authentik, docker, virt-operator-fips, prometheus-operator-fips, commercial-grafana, terraform, gitlab-workhorse-ce, commercial-spilo, dataplaneapi, kubernetes, pinact, etcd, frankenphp-8.3, rke2-runtime, cilium-envoy-fips, flux,...

traefik -- Multiple vulnerabilities

The traefik project releases a new version addressing multiple vulnerabilities: GHSA-cxjq-mrr5-89rv Authentication Bypass via Path Traversal in ReplacePathRegex Middleware GHSA-42cj-m3vj-89wv CRD IngressRouteTCP ServersTransport Cross-Provider Namespace Bypass GHSA-qq9q-x9w4-chhj Gateway API...

SUSE CVE-2026-54763

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...

SUSE CVE-2026-54764

Traefik is an HTTP reverse proxy and load balancer. Prior to v2.11.51, v3.6.22, and v3.7.6, Traefik's ForwardAuth middleware, even when configured with trustForwardHeader: false, derives the X-Forwarded-Port header sent to the authentication service from the original incoming request instead of t...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the handling of HTTP headers in authentication middlewares. An attacker can impersonate users or escalate privileges by injecting underscore-variant headers that bypass canonical header strippin...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the handling of HTTP headers in authentication middlewares. An attacker can impersonate users or escalate privileges by injecting underscore-variant headers that bypass canonical header strippin...

Improper Handling of Case Sensitivity

Overview github.com/traefik/traefik/v2/pkg/server is a server package for traefik, a cloud native edge router. Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the handling of HTTP headers in authentication middlewares. An attacker can impersonate user...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the handling of HTTP headers in authentication middlewares. An attacker can impersonate users or escalate privileges by injecting underscore-variant headers that bypass canonical header strippin...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the handling of HTTP headers in authentication middlewares. An attacker can impersonate users or escalate privileges by injecting underscore-variant headers that bypass canonical header strippin...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the handling of HTTP headers in authentication middlewares. An attacker can impersonate users or escalate privileges by injecting underscore-variant headers that bypass canonical header strippin...

CVE-2026-54765

Traefik is an open source HTTP reverse proxy and load balancer. From v3.7.0 prior to v3.7.6, Traefik's Kubernetes Gateway API provider may resolve two accepted HTTPRoutes that target the same backend Service:port but configure different backendRef filters to the same child service and apply only...

CVE-2026-54763

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...