FKIE_CVE-2026-22771

Vulnerability from fkie_nvd - Published: 2026-01-12 19:16 - Updated: 2026-02-05 21:04
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.5.7 and 1.6.2, EnvoyExtensionPolicy Lua scripts executed by Envoy proxy can be used to leak the proxy's credentials. These credentials can then be used to communicate with the control plane and gain access to all secrets that are used by Envoy proxy, e.g. TLS private keys and credentials used for downstream and upstream communication. This vulnerability is fixed in 1.5.7 and 1.6.2.
References
security-advisories@github.comhttps://github.com/envoyproxy/gateway/security/advisories/GHSA-xrwg-mqj6-6m22Exploit, Vendor Advisory, Mitigation
Impacted products
Vendor Product Version
envoyproxy gateway *
envoyproxy gateway *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E2A97BD9-F262-4D47-8C04-D4470FB7814A",
              "versionEndExcluding": "1.5.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F023F702-BA4E-4DD9-B7EE-31F221F632E0",
              "versionEndExcluding": "1.6.2",
              "versionStartIncluding": "1.6.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.5.7 and 1.6.2, EnvoyExtensionPolicy Lua scripts executed by Envoy proxy can be used to leak the proxy\u0027s credentials. These credentials can then be used to communicate with the control plane and gain access to all secrets that are used by Envoy proxy, e.g. TLS private keys and credentials used for downstream and upstream communication. This vulnerability is fixed in 1.5.7 and 1.6.2."
    },
    {
      "lang": "es",
      "value": "Envoy Gateway es un proyecto de c\u00f3digo abierto para gestionar Envoy Proxy como una pasarela de aplicaciones independiente o basada en Kubernetes. Antes de las versiones 1.5.7 y 1.6.2, los scripts Lua de EnvoyExtensionPolicy ejecutados por el proxy Envoy pueden ser utilizados para filtrar las credenciales del proxy. Estas credenciales pueden entonces ser utilizadas para comunicarse con el plano de control y obtener acceso a todos los secretos que son utilizados por el proxy Envoy, por ejemplo, claves privadas TLS y credenciales utilizadas para la comunicaci\u00f3n descendente y ascendente. Esta vulnerabilidad est\u00e1 corregida en las versiones 1.5.7 y 1.6.2."
    }
  ],
  "id": "CVE-2026-22771",
  "lastModified": "2026-02-05T21:04:49.683",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-12T19:16:03.470",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory",
        "Mitigation"
      ],
      "url": "https://github.com/envoyproxy/gateway/security/advisories/GHSA-xrwg-mqj6-6m22"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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