{"id":"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.","aliases":["GHSA-w3gf-xc94-wvmj"],"modified":"2026-08-22T03:49:46.265065761Z","published":"2026-08-20T21:38:47.952Z","related":["openSUSE-SU-2026:11167-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-256","CWE-522"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55765.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cloudnative-pg/cloudnative-pg","events":[{"introduced":"0"},{"introduced":"23eae00cd7aad82978397798dd27b600eb25ae3d"},{"fixed":"f74344b4d3a6d9fbe06748ba1747901f6077db2a"},{"fixed":"94ee3117858765c77d0dbfde381a037944a48a64"},{"fixed":"2f0342747e1f160425b9d51753c0069b0d6117d5"},{"fixed":"3cd5af5d388c26758acf13c19ea806b4bcebb3fe"},{"fixed":"9a13573dbe3d78721b7ea92141e6d2324a2c0ef0"},{"fixed":"4b5e244a7d031f67e025c83c1555e7726ecbbfa1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.28.4"},{"introduced":"1.29.0"},{"fixed":"1.29.2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.30.0-rc1","v1.28.3","v1.29.1","v1.28.2","v1.29.0","v1.28.1","v1.28.0","v1.28.0-rc2","v1.28.0-rc1","v1.27.0","v1.27.0-rc1","v1.26.0","v1.26.0-rc3","v1.26.0-rc2","v1.26.0-rc1","v1.25.0","v1.25.0-rc1","v1.24.0","v1.24.0-rc1","v1.23.0","v1.21.0","v1.20.0","v1.19.0","v1.18.0","v1.17.0","v1.15.1","v1.15.0","v1.14.0","v1.13.0","v1.12.0","v1.11.0","v1.10.0","v1.9.2","v1.9.1","v1.9.0","v1.8.0","v1.7.1","v1.7.0","v1.6.0","v1.5.1","v1.5.0","v1.4.0","v1.3.0","v1.2.1","v1.2.0","v1.1.0","v1.0.0","v0.8.0","v0.7.0","v0.6.0","v0.5.0","v0.4.0","v0.3.0","v0.2.0","v0.1.0","v0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55765.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}