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CVE-2026-24308— Apache ZooKeeper: Sensitive information disclosure in client configuration handling

Quick assessment

Affected
Apache Software Foundation Apache ZooKeeper
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Zookeeper是美国阿帕奇（Apache）基金会的一个软件项目，它能够为大型分布式计算提供开源的分布式配置服务、同步服务和命名注册等功能。 Apache ZooKeeper 3.8.5版本和3.9.4版本存在安全漏洞，该漏洞源于ZKConfig对配置值处理不当，可能导致敏感信息泄露到客户端日志文件中。

AI Predicted 5.3 Difficulty: Easy EPSS 1.18% · P66

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
Apache Software Foundation Apache ZooKeeper 3.9.0≤ 3.9.4 affected
3.8.0≤ 3.8.5 affected
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I. Basic Information for CVE-2026-24308

Vulnerability Information
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Vulnerability Title
Apache ZooKeeper: Sensitive information disclosure in client configuration handling
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Zookeeper 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Zookeeper是美国阿帕奇（Apache）基金会的一个软件项目，它能够为大型分布式计算提供开源的分布式配置服务、同步服务和命名注册等功能。 Apache ZooKeeper 3.8.5版本和3.9.4版本存在安全漏洞，该漏洞源于ZKConfig对配置值处理不当，可能导致敏感信息泄露到客户端日志文件中。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache ZooKeeper 3.9.0 ~ 3.9.4 -

II. Public POCs for CVE-2026-24308

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III. Intelligence Information for CVE-2026-24308

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Mailing List Discussions for CVE-2026-24308 (1)

IV. Related Vulnerabilities

Same product: Apache ZooKeeper
Same vendor: Apache Software Foundation
Same weakness: CWE-532

V. Comments for CVE-2026-24308

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