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Vulnerability · Published Aug 20, 2026 · Assigned by GitHub_M

CVE-2026-55765CloudNativePG: 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

High 8.5

In plain English

A high-severity security flaw in cloudnative-pg from cloudnative-pg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)8.5High
Exploit odds (30 days)0.5%top 57.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
cloudnative-pg cloudnative-pg < 1.28.4>= 1.29.0, < 1.29.2

Weakness: CWE-256, CWE-522 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References