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Fencer Intel
high 8.5

CVE-2026-55765 json

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

published 4mo ago modified 16d ago also EUVD-2026-63685 , GHSA-w3gf-xc94-wvmj

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository cloudnative-pg/cloudnative-pg. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
8.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

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.

Patch / fix

  • linuxfoundation cloudnativepg 1.28.4, 1.29.2
  • kubectl-cnpg openSUSE Tumbleweed 1.29.2-1.1

opensuse advisories openSUSE-SU-2026:11167-1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-55765 updated cvss 8.5

github.com/cloudnative-pg/cloudnative-pg: CloudNativePG: Remote Code Execution due to cleartext role passwords in pg_stat_statements

  • Red Hat Openshift Data Foundation 4 odf4/odf-cli-rhel9, odf4/ocs-client-rhel9-operator, odf4/ocs-metrics-exporter-rhel9
    affected: workaround, no fix available
  • Red Hat Openshift Data Foundation 4 odf4, odf4/devicefinder-rhel9, odf4/mcg-rhel9-operator, odf4/ocs-rhel9-operator, odf4/odf-rhel9-operator, odf4/odf-multicluster-rhel9-operator
    not affected: vulnerable code not in execute path

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2mo ago

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

  • cloudnative-pg cloudnative-pg

Classification

Weakness
  • CWE-256 Plaintext Storage of a Password
  • CWE-522 Insufficiently Protected Credentials

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of cloudnative-pg/cloudnative-pg published their own advisory on GitHub. Reviewed sources take precedence over it.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.