A NULL pointer dereference vulnerability exists in Pgpool-II, which may allow an unauthenticated attacker to cause abnormal termination of the watchdog process.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

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 None

Integrity Impact None

Availability Impact High

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.

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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://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 12:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated NULL Pointer Dereference in Pgpool-II Watchdog Process Causes Denial of Service

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

Type Values Removed Values Added
Description A NULL pointer dereference vulnerability exists in Pgpool-II, which may allow an unauthenticated attacker to cause abnormal termination of the watchdog process.
Weaknesses CWE-476
References
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-09-30T07:47:32.091Z

Reserved: 2026-09-17T06:31:54.744Z

Link: CVE-2026-92871

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-30T08:16:35.193

Modified: 2026-09-30T08:16:35.193

Link: CVE-2026-92871

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T12:15:17Z

Weaknesses