CVE-2026-55765

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
8.5
EG Score
8.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity85% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

September 18, 2026

Advisory Details (8)

Auto-updated Aug 20, 2026
Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available

v1.30.0

Patch available: cloudnative-pg/cloudnative-pg v1.30.0

https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0
github_release Patch Available

v1.29.2

Patch available: cloudnative-pg/cloudnative-pg v1.29.2

https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2
github_release Patch Available

v1.28.4

Patch available: cloudnative-pg/cloudnative-pg v1.28.4

https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4
github_commit

commit 9a13573dbe3d (cloudnative-pg/cloudnative-pg)

Fix landed in cloudnative-pg/cloudnative-pg commit 9a13573dbe3d — awaiting tagged release

https://github.com/cloudnative-pg/cloudnative-pg/commit/9a13573dbe3d78721b7ea92141e6d2324a2c0ef0
github_commit

commit 3cd5af5d388c (cloudnative-pg/cloudnative-pg)

Fix landed in cloudnative-pg/cloudnative-pg commit 3cd5af5d388c — awaiting tagged release

https://github.com/cloudnative-pg/cloudnative-pg/commit/3cd5af5d388c26758acf13c19ea806b4bcebb3fe
github_commit

commit 2f0342747e1f (cloudnative-pg/cloudnative-pg)

Fix landed in cloudnative-pg/cloudnative-pg commit 2f0342747e1f — awaiting tagged release

https://github.com/cloudnative-pg/cloudnative-pg/commit/2f0342747e1f160425b9d51753c0069b0d6117d5
github_pr

feat: SCRAM-SHA-256 encode role passwords operator-side

Fix merged in cloudnative-pg/cloudnative-pg PR #10724 on 2026-05-27 — awaiting tagged release

https://github.com/cloudnative-pg/cloudnative-pg/pull/10724
githubMentions a patch (unverified)

Cleartext role passwords recorded in `pg_stat_statements` can expose the PostgreSQL superuser credential · Advisory · cloudnative-pg/cloudnative-pg · GitHub

Affected: 1.28.4, 1.29.2 and 1.30.0.

https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-w3gf-xc94-wvmj

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-10 20:00 UTCEPSS rescore
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  3. 2026-10-09 08:14 UTCEG score recompute
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  1. 2026-09-27 13:48 UTCEPSS rescore
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  64. 2026-08-20 21:42 UTCEG score recompute
  65. 2026-08-20 21:41 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-55765?
CVE-2026-55765 is a high vulnerability published on August 20, 2026. 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…
When was CVE-2026-55765 disclosed?
CVE-2026-55765 was first published on August 20, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55765 actively exploited?
CVE-2026-55765 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55765?
CVE-2026-55765 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55765?
A fix for CVE-2026-55765 is available: update to the fixed version the vendor names in its advisory.

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