CVE-2026-65601

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-2026-65601 Traefik before 3.7.7 Namespace Confusion via HTTPRoute ExtensionRef

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-2026-65601

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-2026-65601: 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...

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...

BIT-HUBBLE-RELAY-2026-56742 Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

BIT-CILIUM-2026-56742 Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

BIT-CILIUM-OPERATOR-2026-56742 Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

Envoy Gateway: Nil-dereference when SecurityPolicy targets TCPRoute without spec.authorization

Vulnerability report without repro case. Repro case may be added later after harness is complete. Preconditions 4: - Tenant has SecurityPolicy + TCPRoute RBAC baseline - Tenant namespace permitted to attach TCPRoute to a Gateway listener - spec.authorization omitted the trigger - No admission...

PT-2026-60691

Name of the Vulnerable Software and Affected Versions Envoy Gateway affected versions not specified Description A nil-dereference occurs when a SecurityPolicy targets a TCPRoute that lacks the spec.authorization field. A namespace-scoped tenant can cause the gatewayapi runner to panic during ever...

CVE-2026-56742

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

CVE-2026-56742

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

CVE-2026-56742 Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

CVE-2026-56742 Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

CVE-2026-56742

Cilium Gateway API vulnerability (CVE-2026-56742): Prior to versions 1.17.17, 1.18.11, and 1.19.5, clusters using Gateway API allowed users with write permissions on namespaced HTTPRoutes to mirror traffic to any Service in any namespace, bypassing ReferenceGrant checks. Impacted when Gateway API...

CVE-2026-56742: Missing Authorization

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant...

CVE-2026-15738

Incorrect behavior order in the Gateway API listener-rule generation in Amazon AWS Load Balancer Controller before 3.4.2 might allow an authenticated remote user to intercept, spoof, or deny another namespace's gRPC traffic on a shared Gateway via a crafted HTTPRoute resource. To mitigate this...

EUVD-2026-44491

Incorrect behavior order in the Gateway API listener-rule generation in Amazon AWS Load Balancer Controller before 3.4.2 might allow an authenticated remote user to intercept, spoof, or deny another namespace's gRPC traffic on a shared Gateway via a crafted HTTPRoute resource. To mitigate this...

SUSE 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-2026-54765

CVE-2026-54765 affects Traefik v3.7.0 through v3.7.5, fixed in v3.7.6. In the Kubernetes Gateway API provider, two accepted HTTPRoutes targeting the same backend Service:port can have different backendRef filters, with only one route’s filter set applied to all requests. This can allow a route’s ...