CVE-2026-55765Network attack vector

Superuser credential theft via cleartext utility statements

Published Aug 20, 2026 · Updated Aug 25, 2026

Credential exposure in CloudNativePG before 1.28.4 and 1.29.0 through 1.29.1 allows remote authenticated users to recover role passwords. SetUserPassword and appendPasswordOption interpolate cleartext values into CREATE ROLE and ALTER ROLE utility statements that pg_stat_statements records. Exploitation requires track_utility, a tenant holding pg_monitor or pg_read_all_stats, and superuser TCP access; recovered credentials permit operating system command execution in the database pod, while managed SCRAM-SHA-256 verifiers prevent exposure.

CVSS severity8.5
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in CloudNativePG before 1.28.4 and 1.29.0 through 1.29.1 allows remote authenticated users to recover role passwords. SetUserPassword and appendPasswordOption interpolate cleartext values into CREATE ROLE and ALTER ROLE utility statements that pg_stat_statements records. Exploitation requires track_utility, a tenant holding pg_monitor or pg_read_all_stats, and superuser TCP access; recovered credentials permit operating system command execution in the database pod, while managed SCRAM-SHA-256 verifiers prevent exposure.

The record

CVE
CVE-2026-55765
Published
Aug 20, 2026
Updated
Aug 25, 2026
Vendor
CloudNativePG
Product
CloudNativePG
Classifications
CWE-256, CWE-522, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.28.4
  2. Affected versionversion=>= 1.29.0, < 1.29.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CloudNativePG · CloudNativePGversion=< 1.28.4; version=>= 1.29.0, < 1.29.2

Published CVSS scores

8.5GitHub Security AdvisoryCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
CWE-522Insufficiently Protected Credentials
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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