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.
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.
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History
Wed, 04 Nov 2026 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Apache ZooKeeper: Unauthenticated persistent denial of service via unvalidated quota-node data and paths crashing the transaction-apply thread | |
| Weaknesses | CWE-755 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-11-04T11:09:29.613Z
Reserved: 2026-09-25T17:44:40.392Z
Link: CVE-2026-100300
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Status : Received
Published: 2026-11-04T11:17:06.873
Modified: 2026-11-04T11:17:06.873
Link: CVE-2026-100300
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OpenCVE Enrichment
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Weaknesses