CVE-2026-100300
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
77/100
Published: 2026-11-04
Modified: 2026-11-04
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
None
VI:
None
VA:
High
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.
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| Apache Software Foundation | Apache ZooKeeper | 3.9.0 |
| Apache Software Foundation | Apache ZooKeeper | 3.8.0 |
| Apache Software Foundation | Apache ZooKeeper | 3.9.0 |
| Apache Software Foundation | Apache ZooKeeper | 3.8.0 |
| Apache Software Foundation | Apache ZooKeeper | 3.9.0 |
| Apache Software Foundation | Apache ZooKeeper | 3.8.0 |
References & Advisories (2)
vendor-advisory