« Volver al listado

CVE-2026-22771

Estado: ModificadaAlta (8.8)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N, PR:L permite explotación de servicio remoto (T1210). Lua scripts ejecutan código arbitrario (T1059). Exposición de credenciales del proxy y secretos de control plane (T1552.007, T1078.004).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementUser Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramActive Directory ConfigurationVulnerability Scanning

Tecnologías afectadas (1)

Envoyproxy — Gateway

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-22771",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-22771",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-12T18:49:10.805589Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Secondary",
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "envoyproxy",
          "product": "gateway",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.5.7"
            },
            {
              "status": "affected",
              "version": ">= 1.6.0-rc.0, < 1.6.2"
            }
          ]
        }
      ]
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:connectivity_link:1"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Connectivity Link 1",
          "packageName": "rhcl-1/rhcl-operator-bundle",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:connectivity_link:1"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Connectivity Link 1",
          "packageName": "rhcl-1/rhcl-rhel9-operator",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-01-12T19:16:03.470",
  "references": [
    {
      "url": "https://github.com/envoyproxy/gateway/security/advisories/GHSA-xrwg-mqj6-6m22",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-22771",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428735",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22771.json",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "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'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."
    },
    {
      "lang": "es",
      "value": "Envoy Gateway es un proyecto de código 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 comunicación descendente y ascendente. Esta vulnerabilidad está corregida en las versiones 1.5.7 y 1.6.2."
    }
  ],
  "lastModified": "2026-07-15T02:18:35.447",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E2A97BD9-F262-4D47-8C04-D4470FB7814A",
              "versionEndExcluding": "1.5.7"
            },
            {
              "criteria": "cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F023F702-BA4E-4DD9-B7EE-31F221F632E0",
              "versionEndExcluding": "1.6.2",
              "versionStartIncluding": "1.6.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}