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Moderate severityNVD Advisory· Published Mar 15, 2024· Updated Jul 3, 2025

Apache ZooKeeper: Information disclosure in persistent watcher handling

CVE-2024-23944

Description

Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows an attacker to monitor child znodes by attaching a persistent watcher (addWatch command) to a parent which the attacker has already access to. ZooKeeper server doesn't do ACL check when the persistent watcher is triggered and as a consequence, the full path of znodes that a watch event gets triggered upon is exposed to the owner of the watcher. It's important to note that only the path is exposed by this vulnerability, not the data of znode, but since znode path can contain sensitive information like user name or login ID, this issue is potentially critical.

Users are recommended to upgrade to version 3.9.2, 3.8.4 which fixes the issue.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.apache.zookeeper:zookeeperMaven
>= 3.8.0, < 3.8.43.8.4
org.apache.zookeeper:zookeeperMaven
>= 3.9.0, < 3.9.23.9.2
org.apache.zookeeper:zookeeperMaven
>= 3.6.0, <= 3.7.2—

Affected products

174

Patches

Vulnerability mechanics

References

7

News mentions

0

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