{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:linuxfoundation:cloudnativepg:*:*:*:*:*:kubernetes:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.28.3"
              },
              {
                "introduced": "1.29.0"
              },
              {
                "fixed": "1.29.1"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d0ce8ac4a6e58154520e8614025bfb1f2aa216f1"
            },
            {
              "introduced": "23eae00cd7aad82978397798dd27b600eb25ae3d"
            },
            {
              "fixed": "a4060c152630c9e8958e17d3d23f26b4eb30b69f"
            }
          ],
          "repo": "https://github.com/cloudnative-pg/cloudnative-pg",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-423p-g724-fr39"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-250",
      "CWE-271",
      "CWE-426"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44477.json"
  },
  "details": "CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.29.1 and 1.28.3, the CloudNativePG metrics exporter opens its PostgreSQL connection as the postgres superuser via the pod-local Unix socket, then demotes the session with SET ROLE pg_monitor. SET ROLE changes only current_user; session_user remains postgres. Any SQL expression evaluated inside the scrape session can invoke RESET ROLE to recover real superuser privileges, then use COPY ... TO PROGRAM to spawn an OS-level subprocess as the postgres user inside the primary pod. The READ ONLY transaction flag does not block this; it gates writes to database state, not external processes. This vulnerability is fixed in 1.29.1 and 1.28.3.",
  "id": "CVE-2026-44477",
  "modified": "2026-07-08T05:38:47.741794064Z",
  "published": "2026-05-28T15:46:12.241Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44477.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-44477"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44477.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-423p-g724-fr39"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44477"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482763"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cloudnative-pg/cloudnative-pg/pull/10576"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CloudNativePG: Metrics exporter allows privilege escalation to PostgreSQL superuser and OS RCE"
}