{"id":"CVE-2026-55765","aliases":["GHSA-w3gf-xc94-wvmj"],"url":"https://o3.security/vulnerability/CVE-2026-55765","summary":"CloudNativePG: Cleartext role passwords recorded in pg_stat_statements allow privileged tenant  roles to recover the PostgreSQL superuser credential and achieve RCE in the database pod","details":"CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG embedded cleartext role passwords in `ALTER ROLE` and `CREATE ROLE` statements generated by SetUserPassword in pkg/management/postgres/utils/roles.go and appendPasswordOption in internal/management/controller/roles/postgres.go. When pg_stat_statements was preloaded with track_utility enabled and an untrusted tenant held pg_monitor or pg_read_all_stats, the tenant could recover platform-managed superuser or application-owner passwords, reconnect through enabled superuser TCP access, and execute operating system commands in the database pod with `COPY ... FROM PROGRAM`. Clusters using SCRAM-SHA-256 verifiers in managed-role Secrets were not affected. This issue is fixed in versions 1.28.4, 1.29.2, and 1.30.0.","published":"2026-08-20T21:38:47.952Z","modified":"2026-08-22T03:49:46.265065761Z","cvss":{"score":8.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d51753c0069b0d6117d5","label":"cloudnative-pg/cloudnative-pg@2f03427"},"references":[{"type":"WEB","url":"https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4"},{"type":"WEB","url":"https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2"},{"type":"WEB","url":"https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55765.json"},{"type":"ADVISORY","url":"https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-w3gf-xc94-wvmj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55765"},{"type":"FIX","url":"https://github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d51753c0069b0d6117d5"},{"type":"FIX","url":"https://github.com/cloudnative-pg/cloudnative-pg/commit/3cd5af5d388c26758acf13c19ea806b4bcebb3fe"},{"type":"FIX","url":"https://github.com/cloudnative-pg/cloudnative-pg/commit/9a13573dbe3d78721b7ea92141e6d2324a2c0ef0"},{"type":"FIX","url":"https://github.com/cloudnative-pg/cloudnative-pg/pull/10724"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-22T03:49:46.265065761Z"}}