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CVE-2026-100300 Details

Description

Improper handling of exceptional conditions in the quota subsystem of Apache ZooKeeper allows an attacker able to write under the /zookeeper/quota subtree — unauthenticated on default deployments, where that subtree is world-writable — to crash the server's critical request-processing thread and render the on-disk data directory permanently unbootable. This issue affects Apache ZooKeeper up to and including 3.9.6. Users are recommended to upgrade to version 3.8.8 or 3.9.7, which fixes the issue.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://www.openwall.com/lists/oss-security/2026/11/03/11	CVE
https://lists.apache.org/thread.html/09pgg7rcpzz44noxgtvpzstwt8fmvsb0	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-755	Improper Handling of Exceptional Conditions	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	CISA-ADP
Nov 4, 2026	CVE Modified	CVE
Nov 4, 2026	New CVE Received	[email protected]