Missing Authorization Affecting org.apache.zookeeper:zookeeper package, versions [3.8.0,3.8.7)[3.9.0,3.9.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHEZOOKEEPER-20158990
- published27 Sept 2026
- disclosed16 Sept 2026
- creditn0mi1k, NGUYEN HONG QUAN
Introduced: 16 Sep 2026
NewCVE-2026-59739 (opens in a new tab)How to fix?
Upgrade org.apache.zookeeper:zookeeper to version 3.8.7, 3.9.6 or higher.
Overview
org.apache.zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
Affected versions of this package are vulnerable to Missing Authorization in the setWatches. An attacker can obtain sensitive path information by registering exists-watches on non-existent paths and then reconnecting after those paths are created with restricted ACLs. This allows the attacker to discover ACL-restricted paths, potentially exposing sensitive details such as user names or login IDs.