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CVE-2026-53718

Publié : 14 septembre 2026
Modifié : 15 septembre 2026
Lien officiel NVD
Score CVSS
6.4
MEDIUM

Description détaillée

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.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L

Références et Patchs

https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eeadhttps://github.com/envoyproxy/gateway/pull/9171https://github.com/envoyproxy/gateway/pull/9172https://github.com/envoyproxy/gateway/pull/9173https://github.com/envoyproxy/gateway/releases/tag/v1.7.4https://github.com/envoyproxy/gateway/releases/tag/v1.8.1https://github.com/envoyproxy/gateway/security/advisories/GHSA-fcrp-7gc2-93g7

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