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.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| Apache Software Foundation | Apache ZooKeeper | unaffected |
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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 | |
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cvssV4_0
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-11-04T11:09:29.613Z
Reserved: 2026-09-25T17:44:40.392Z
Link: CVE-2026-100300
Vulnrichment
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NVD
Status : Received
Published: 2026-11-04T11:17:06.873
Modified: 2026-11-04T11:17:06.873
Link: CVE-2026-100300
Redhat
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OpenCVE Enrichment
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CWE-755
Improper Handling of Exceptional Conditions