Bug 2520818 (CVE-2026-55765)

Summary: CVE-2026-55765 github.com/cloudnative-pg/cloudnative-pg: CloudNativePG: Remote Code Execution due to cleartext role passwords in pg_stat_statements
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in CloudNativePG. Cleartext role passwords were recorded in `pg_stat_statements`, which could allow an untrusted tenant with `pg_monitor` or `pg_read_all_stats` privileges to recover superuser or application-owner passwords. This unauthorized access could enable the tenant to execute operating system commands within the database pod, resulting in remote code execution.
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Description OSIDB Bzimport 2026-08-20 21:52:01 UTC 
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.