# CVE-2026-55765

## Summary

- **CVE ID:** CVE-2026-55765
- **Severity:** HIGH
- **CVSS Score:** 8.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-256, CWE-522
- **Published:** Aug 20, 2026
- **Last Modified:** Aug 25, 2026

## 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

- cloudnative-pg — cloudnative-pg (< 1.28.4)
- cloudnative-pg — cloudnative-pg (>= 1.29.0, < 1.29.2)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._