Traefik CRD IngressRouteTCP ServersTransport Cross-Provider Namespace Bypass

Summary There is a medium-severity cross-provider reference vulnerability in Traefik's Kubernetes CRD provider. The crossProviderNamespaces allowlist is enforced for HTTP serversTransport references but was not enforced for IngressRouteTCP service serversTransport references. A low-privileged...

EUVD-2026-47646

Traefik CRD IngressRouteTCP ServersTransport Cross-Provider Namespace Bypass...

EUVD-2026-43720

Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass...

CVE-2026-65602

A flaw was found in Traefik. A low-privileged Kubernetes user can bypass the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references. By setting a forbidden cross-provider reference, Traefik may use a file-provider TCPServersTransport. This can lead to the exposu...

CVE-2026-54761

A flaw was found in Traefik, an HTTP reverse proxy and load balancer. This vulnerability exists in the Kubernetes Gateway provider's crossProviderNamespaces allowlist. A remote attacker with the ability to create an accepted HTTPRoute and a matching ReferenceGrant can exploit this by misconfiguri...

Improper Verification of Source of a Communication Channel

Overview @auth/core is an Authentication for the Web. Affected versions of this package are vulnerable to Improper Verification of Source of a Communication Channel via improper binding of OAuth check cookies to the provider that created them. An attacker can gain unauthorized access to a victim'...

Improper Verification of Source of a Communication Channel

Overview next-auth is an Authentication for Next.js Affected versions of this package are vulnerable to Improper Verification of Source of a Communication Channel via improper binding of OAuth check cookies to the provider that created them. An attacker can gain unauthorized access to a victim's...

Duplicate Advisory: Traefik CRD IngressRouteTCP ServersTransport Cross-Provider Namespace Bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-42cj-m3vj-89wv. This link is maintained to preserve external references. Original Description Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for...

CVE-2026-65602

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...

CVE-2026-65602 Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass

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...

CVE-2026-65602 Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass

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...

CVE-2026-65602

Traefik (3.6.0–3.6.22 and 3.7.0–3.7.6) fails to enforce crossProviderNamespaces allowlist for IngressRouteTCP serversTransport, permitting a low-privilege namespace user to set serversTransport: foo@file on an IngressRouteTCP service. This can cause Traefik to accept a cross-provider reference an...

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...

CVE-2026-52839

Easy!Appointments versions before 1.6.0 allow cross-provider appointment injection via unauthorized use of the store and update endpoints. The vulnerability arises because store/update do not verify that id_users_provider belongs to the current session, enabling a provider to add or reassign appo...

CVE-2026-52839 Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 correctly filter provider-scoped appointments in the appointments/search response, proving that provider isolation is an intended security boundary. However, the direct mutation endpoints appointments/store and...

CVE-2026-52839 Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 correctly filter provider-scoped appointments in the appointments/search response, proving that provider isolation is an intended security boundary. However, the direct mutation endpoints appointments/store and...

CVE-2026-52839 Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 correctly filter provider-scoped appointments in the appointments/search response, proving that provider isolation is an intended security boundary. However, the direct mutation endpoints appointments/store and...

EUVD-2026-43570

OpenClaw versions 2026.6.6 before 2026.6.9 contain an authorization bypass vulnerability in Discord guild actions that allows lower-trust callers to perform actions requiring stronger authorization checks. Attackers can exploit misconfigured input paths to skip cross-provider requester...

PT-2026-58067

Name of the Vulnerable Software and Affected Versions Easy!Appointments versions prior to 1.6.0 Description An issue exists where the application fails to verify if the id users provider submitted to specific endpoints belongs to the current session. While provider isolation is maintained in sear...

CVE-2026-62192

OpenClaw versions 2026.6.6 before 2026.6.9 contain an authorization bypass vulnerability in Discord guild actions that allows lower-trust callers to perform actions requiring stronger authorization checks. Attackers can exploit misconfigured input paths to skip cross-provider requester...