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Missing Authorization Affecting tigera-operator-1.40 package, versions <1.40.14-r0

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-TIGERAOPERATOR140-19008339
  • published20 Aug 2026
  • disclosed14 Sept 2026
Report a new vulnerability Found a mistake?

Introduced: 20 Aug 2026

CVE-2026-53718  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Minimos:latest tigera-operator-1.40 to version 1.40.14-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigera-operator-1.40 package and not the tigera-operator-1.40 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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 ReferenceGrant in the target namespace. The custom-backend branch in internal/gatewayapi/route.go omits validateBackendNamespace, allowing the route-owning namespace to bind to and use the resource without the backend namespace owner's consent and violating the Gateway API cross-namespace authorization model. This issue is fixed in versions 1.7.4 and 1.8.1.