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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-55769 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 9.4 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/cloudnative-pg/cloudnative-pg/commit/02b5c6289b7609dc87fcb1ae9c113160e3d43308 GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/commit/db38f4d80315c8f1b21bf511ef0f28871820c14d GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/commit/e0e2d53adbd907a61f583b1431904b5969f3fd22 GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/pull/10774 GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4 GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2 GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0 GitHub, Inc.
https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-x8c2-3p4r-v9r6 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-426 Untrusted Search Path GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-55769
NVD Published Date:
08/20/2026
NVD Last Modified:
08/20/2026
Source:
GitHub, Inc.