---
id: CVE-2026-55769
title: >-
  CloudNativePG is a platform designed to manage PostgreSQL databases within
  Kubernetes environments
summary: >-
  CloudNativePG is a platform designed to manage PostgreSQL databases within
  Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG opened
  superuser connections without pinning search_path in fillDefaultParameters in
  pkg/manage…
severity: none
cwe:
  - CWE-426
published: '2026-08-20'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55769'
references:
  - url: >-
      https://github.com/cloudnative-pg/cloudnative-pg/commit/02b5c6289b7609dc87fcb1ae9c113160e3d43308
    label: security-advisories@github.com
  - url: >-
      https://github.com/cloudnative-pg/cloudnative-pg/commit/db38f4d80315c8f1b21bf511ef0f28871820c14d
    label: security-advisories@github.com
  - url: >-
      https://github.com/cloudnative-pg/cloudnative-pg/commit/e0e2d53adbd907a61f583b1431904b5969f3fd22
    label: security-advisories@github.com
  - url: 'https://github.com/cloudnative-pg/cloudnative-pg/pull/10774'
    label: security-advisories@github.com
  - url: 'https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4'
    label: security-advisories@github.com
  - url: 'https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2'
    label: security-advisories@github.com
  - url: 'https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-x8c2-3p4r-v9r6
    label: security-advisories@github.com
  - url: >-
      https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-x8c2-3p4r-v9r6
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00771
epssPercentile: 0.53694
ingestedAt: '2026-09-18T20:51:25.649Z'
---

## Overview

CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG opened superuser connections without pinning search_path in fillDefaultParameters in pkg/management/postgres/pool/profiles.go. A role holding DATABASE OWNER could create overloaded built-in operators in the public schema and change the database or role search_path, causing instance-manager introspection queries such as SELECT COUNT(*) > 0 FROM pg_catalog.pg_extension WHERE extname = $1 to execute attacker-controlled functions as the postgres superuser. The same trust issue affected direct sql.Open("pgx", ...) callsites and the public.user_search SECURITY DEFINER function, enabling PostgreSQL superuser access, operating system command execution through COPY ... FROM PROGRAM, and access to the pod ServiceAccount token. This issue is fixed in versions 1.28.4, 1.29.2, and 1.30.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.