CVE-2026-65960

Full vulnerability record from the local CVENow database.

Description

Tetragon is an eBPF-based security observability and runtime enforcement project. Versions before 1.7.0 can use a Helm default that exposes the privileged Tetragon gRPC API through an unauthenticated TCP listener on localhost:54321. An attacker who can run or compromise same-node hostNetwork pods can reach the listener and invoke privileged methods without authentication. These methods can add, delete, or reconfigure tracing policies and change debug settings, potentially resulting in privilege escalation or container escape. Version 1.7.0 changes the default endpoint to a Unix-domain socket. Deployments that do not expose an unauthenticated TCP listener are not affected.

Severity

HIGH

CVSS score

8.8 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-06 20:17:24.397000

Last modified

2026-11-06 20:17:24.397000

View original CVE JSON

{
  "id": "CVE-2026-65960",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T20:17:24.397",
  "lastModified": "2026-11-06T20:17:24.397",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Tetragon is an eBPF-based security observability and runtime enforcement project. Versions before 1.7.0 can use a Helm default that exposes the privileged Tetragon gRPC API through an unauthenticated TCP listener on localhost:54321. An attacker who can run or compromise same-node hostNetwork pods can reach the listener and invoke privileged methods without authentication. These methods can add, delete, or reconfigure tracing policies and change debug settings, potentially resulting in privilege escalation or container escape. Version 1.7.0 changes the default endpoint to a Unix-domain socket. Deployments that do not expose an unauthenticated TCP listener are not affected."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "cilium",
          "product": "tetragon",
          "versions": [
            {
              "version": "< 1.7.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/cilium/tetragon/commit/8e89933d3526f37c04f7523013ff32f8b1c6f62a",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/cilium/tetragon/commit/fe46101770b960ebbf39fe9749bb20d49cf178b2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/cilium/tetragon/pull/4882",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/cilium/tetragon/releases/tag/v1.7.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/cilium/tetragon/security/advisories/GHSA-6qqg-3qf7-p3v5",
      "source": "[email protected]"
    }
  ]
}