The postgresql-operator charm runs a Prometheus postgres_exporter to collect database metrics using a dedicated "monitoring" PostgreSQL user. On database connection errors, the exporter writes the monitoring user's password in cleartext to its logs. Any actor able to read those logs can recover the password, which grants read-only pg_monitor access to PostgreSQL. This is fixed in the dev track (14/edge) in revisions 1189 (arm64) and 1190 (amd64), and in the stable track (14/stable) in revisions 1216 (arm64) and 1217 (amd64).

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Canonical postgresql-operator unaffected
Version Status Constraints
0 affected < 1189
0 affected < 1190
0 affected < 1216
0 affected < 1217

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/canonical/charmed-postgresql-snap/pull/305 cve-icon cve-icon
https://github.com/canonical/charmed-postgresql-snap/pull/307 cve-icon cve-icon
https://github.com/canonical/postgresql-operator/pull/1863 cve-icon cve-icon
https://github.com/canonical/postgresql-operator/security/advisories/GHSA-rcx7-7rh5-r542 cve-icon cve-icon
History

Fri, 02 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
Description The postgresql-operator charm runs a Prometheus postgres_exporter to collect database metrics using a dedicated "monitoring" PostgreSQL user. On database connection errors, the exporter writes the monitoring user's password in cleartext to its logs. Any actor able to read those logs can recover the password, which grants read-only pg_monitor access to PostgreSQL. This is fixed in the dev track (14/edge) in revisions 1189 (arm64) and 1190 (amd64), and in the stable track (14/stable) in revisions 1216 (arm64) and 1217 (amd64).
Title Monitoring-user password logged in cleartext by postgres_exporter in postgresql VM charm
Weaknesses CWE-532
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2026-10-02T20:35:50.514Z

Reserved: 2026-10-01T18:01:17.865Z

Link: CVE-2026-104055

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-02T21:16:54.607

Modified: 2026-10-02T21:16:54.607

Link: CVE-2026-104055

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-02T22:30:19Z

Weaknesses