CVE-2026-55765

Vulnerability 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.

CVSS Score

Related Weaknesses (CWE)

References

• https://github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d517
• https://github.com/cloudnative-pg/cloudnative-pg/commit/3cd5af5d388c26758acf13c1
• https://github.com/cloudnative-pg/cloudnative-pg/commit/9a13573dbe3d78721b7ea921
• 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-x