EUVD-2026-78680

OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, OpenBao users granted capabilities on /sys/namespaces/root within a non-root namespace could exploit special handling of the literal root path in namespace canonicalization. The /sys/namespaces/ endpoint family ca...

CVE-2026-53718

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, an HTTPRoute can use an extension-managed custom backendRef to reference a backend resource in another namespace without a matching Gateway API...

CVE-2026-53718

Envoy Gateway prior to 1.7.4 and 1.8.1 contains a cross-namespace authorization bypass in the custom-backend branch of internal/gatewayapi/route.go. The omitted validateBackendNamespace check allows an HTTPRoute to use an extension-managed custom backendRef to reference a backend resource in anot...

EUVD-2026-67167

GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user could have assigned compliance frameworks from namespaces they were not authorized to access to their own...

Temporal Server: attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster

A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the attacker to know or guess specific victim workflow IDs and, for signal operations, signal names. This was due to a bu...

GHSA-XPG8-3HHP-P7W8 Temporal Server: attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster

A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the attacker to know or guess specific victim workflow IDs and, for signal operations, signal names. This was due to a bu...

CVE-2026-5199

The CVE-2026-5199 issue arises from a bug in Temporal Server v1.29.0 where a writer in an attacker-controlled namespace could signal, delete, or reset workflows/activities in a victim namespace on the same cluster. The root cause is that the batch activity validated the victim namespace ID but di...

CVE-2026-31838 Istio HTTP debug endpoints on port 15014 to enforce namespace-based authorization, preventing cross-namespace proxy data access.

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a vulnerability in Envoy RBAC header matching could allow authorization policy bypass when policies rely on HTTP headers that may contain multiple values. An attacker could craft requests...

CVE-2026-31838 Istio HTTP debug endpoints on port 15014 to enforce namespace-based authorization, preventing cross-namespace proxy data access.

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a vulnerability in Envoy RBAC header matching could allow authorization policy bypass when policies rely on HTTP headers that may contain multiple values. An attacker could craft requests...

CVE-2025-14987

When system.enableCrossNamespaceCommands is enabled on by default, the Temporal server permits certain workflow task commands e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution to target a different namespace than the namespace authorized at...

CVE-2025-14987

CVE-2025-14987 : Temporal server has an Incorrect Authorization flaw when system.enableCrossNamespaceCommands is enabled (default on). The frontend validates RespondWorkflowTaskCompleted for the outer namespace, but the history service executes commands using the namespace embedded in command att...

CVE-2025-14987 Cross Namespace Commands Authorization Bypass

When system.enableCrossNamespaceCommands is enabled on by default, the Temporal server permits certain workflow task commands e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution to target a different namespace than the namespace authorized at...

CVE-2020-10676

In Rancher 2.x before 2.6.13 and 2.7.x before 2.7.4, an incorrectly applied authorization check allows users who have certain access to a namespace to move that namespace to a different project...