---
id: CVE-2026-92873
title: >-
  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.
summary: >-
  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.
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-303
vendor: Pgpool Global Development Group
product: Pgpool-II
affected:
  - Pgpool-II >= 4.7.0 <= 4.7.2
  - Pgpool-II >= 4.6.0 <= 4.6.7
  - Pgpool-II >= 4.5.0 <= 4.5.12
  - Pgpool-II >= 4.4.0 <= 4.4.17
  - Pgpool-II >= 4.3.0 <= 4.3.20
  - Pgpool-II >= 3.5.x <= 4.2.x
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T08:16:35.493'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92873'
references:
  - url: 'https://jvn.jp/en/jp/JVN22475874/'
    label: vultures@jpcert.or.jp
  - url: 'https://pgpool.net/news/2026-09-29/'
    label: vultures@jpcert.or.jp
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-30T09:00:29.906Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.