CVE-2026-55765
Medium
Elevated severity or exploit probability.
Description
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.
References
- https://github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d51753c0069b0d6117d5
- https://github.com/cloudnative-pg/cloudnative-pg/commit/3cd5af5d388c26758acf13c19ea806b4bcebb3fe
- https://github.com/cloudnative-pg/cloudnative-pg/commit/9a13573dbe3d78721b7ea92141e6d2324a2c0ef0
- https://github.com/cloudnative-pg/cloudnative-pg/pull/10724
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0
- https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-w3gf-xc94-wvmj