CVE-2026-53714Envoy Gateway: xDS Control Plane Information Disclosure when Envoy Gateway operates in GatewayNamespaceMode
- 7.4HighCVSS base score
- 0.35%Exploitation in 30 daysEPSS · top 71% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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, the xDS gRPC server in GatewayNamespaceMode, configured through provider.kubernetes.deploy.type=GatewayNamespace, installs a JWT StreamInterceptor but no UnaryInterceptor, leaving every unary Fetch RPC unauthenticated. The streaming interceptor also authenticates only discoveryv3.DeltaDiscoveryRequest messages; a discoveryv3.DiscoveryRequest used by the State-of-the-World protocol fails the type assertion and returns success without JWT validation. Any pod that can reach port 18000 can use the unauthenticated unary or State-of-the-World paths to retrieve TLS private keys through StreamSecrets, all xDS resources through StreamAggregatedResources, backend endpoints through StreamClusters or StreamEndpoints, and routing configuration through StreamRoutes or StreamListeners. This issue is fixed in versions 1.7.4 and 1.8.1.
Timeline
ID reserved
By GitHub_M
- 3 months later
· 3 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.4.
Affected products
- affected < 1.7.4
- affected >= 1.8.0-rc.0, < 1.8.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/envoyproxy/gatewayGHSA-22xc-xg2r-9j7v (opens in a new tab)
References
References9
- https://github.com/envoyproxy/gateway/security/advisories/GHSA-22xc-xg2r-9j7v (opens in a new tab)x_refsource_CONFIRM
- https://github.com/envoyproxy/gateway/pull/8986 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/pull/9116 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/pull/9118 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/commit/4df0809ff1ed59ffb09604da4084335b8c6647c5 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/commit/e9124abc4ff4b63a218a6890c1b28a982c850465 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/commit/f1f9829af2a231f0cae915c09800353c76622d97 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/releases/tag/v1.7.4 (opens in a new tab)x_refsource_MISC
- https://github.com/envoyproxy/gateway/releases/tag/v1.8.1 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-78081 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-22xc-xg2r-9j7v (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-53714)Record last updated .