Pgpool-II contains an incorrect implementation of an authentication algorithm, which may allow an unauthenticated attacker to promote an arbitrary watchdog node to the leader node.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

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
Pgpool Global Development Group Pgpool-II unaffected
Version Status Constraints
4.7.0 affected ≤ 4.7.2
4.6.0 affected ≤ 4.6.7
4.5.0 affected ≤ 4.5.12
4.4.0 affected ≤ 4.4.17
4.3.0 affected ≤ 4.3.20
3.5.x affected ≤ 4.2.x

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://jvn.jp/en/jp/JVN22475874/ cve-icon cve-icon
https://pgpool.net/news/2026-09-29/ cve-icon cve-icon
History

Wed, 30 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
Description Pgpool-II contains an incorrect implementation of an authentication algorithm, which may allow an unauthenticated attacker to promote an arbitrary watchdog node to the leader node.
Weaknesses CWE-303
References
Metrics cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-09-30T07:51:52.401Z

Reserved: 2026-09-17T06:31:54.745Z

Link: CVE-2026-92873

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-30T08:16:35.493

Modified: 2026-09-30T08:16:35.493

Link: CVE-2026-92873

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses