Apache ZooKeeper 3.8.53.9.4 LOG Info Exposure via ZKConfig
CVE-2026-24308 Published on March 7, 2026

Apache ZooKeeper: Sensitive information disclosure in client configuration handling
Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue. Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-24308 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Types

Insertion of Sensitive Information into Log File

Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.

Improper Output Neutralization for Logs

The software does not neutralize or incorrectly neutralizes output that is written to logs.


Products Associated with CVE-2026-24308

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-24308 are published in these products:

Apache Zookeeper
 
Red Hat Amq Broker
 
Red Hat Openshift Ai
 
Red Hat Debezium
 
Red Hat Jboss Fuse
 
Red Hat Jboss Enterprise Application Platform
 
Red Hat Jbosseapxp
 
Red Hat Offline Knowledge Portal
 
Red Hat Amq Streams
 
Red Hat Camel Spring Boot
 
Red Hat Jboss Data Grid
 
Red Hat Kafka
 

Affected Versions

Apache Software Foundation Apache ZooKeeper: Red Hat AMQ Broker 7.12.7: Red Hat AMQ Broker 7.13.5: Red Hat AMQ Broker 7.14.0: Red Hat OpenShift AI 2.25: Red Hat Streams for Apache Kafka 2.9.4: Red Hat build of Debezium 2: Red Hat build of Debezium 3: Red Hat Fuse 7: Red Hat JBoss Enterprise Application Platform 7: Red Hat JBoss Enterprise Application Platform Expansion Pack: Red Hat Offline Knowledge Portal: Red Hat OpenShift AI (RHOAI): Red Hat streams for Apache Kafka 3: Red Hat build of Apache Camel for Spring Boot 4: Red Hat Data Grid 8: Red Hat JBoss Enterprise Application Platform 8:

Exploit Probability

EPSS
1.11%
Percentile
61.65%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.