CloudNativePG: 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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55765
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-20 22:17:22 UTC
Updated2026-08-20 22:17:22 UTC
DescriptionCloudNativePG 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.

Risk And Classification

Primary CVSS: v3.1 8.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-256 | CWE-522 | CWE-256 CWE-256: Plaintext Storage of a Password | CWE-522 CWE-522: Insufficiently Protected Credentials

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cloudnative-pg Cloudnative-pg affected < 1.28.4 Not specified
CNA Cloudnative-pg Cloudnative-pg affected >= 1.29.0, < 1.29.2 Not specified

References

ReferenceSourceLinkTags
github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-w3gf-x... [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4 [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/commit/9a13573dbe3d78721b7ea921... [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/commit/3cd5af5d388c26758acf13c1... [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d517... [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0 [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/pull/10724 [email protected] github.com
github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2 [email protected] github.com
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