CVE-2026-24308

Apache ZooKeeper: Sensitive information disclosure in client configuration handling

Published Mar 7, 2026 CVSS 3.1 · 6.5 Medium EPSS 1.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-crhr-qqj8-rpxc Apache ZooKeeper has improper handling of configuration values
History
Type Values Removed Values Added
CPEs cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
Weaknesses CWE-117
References
Metrics threat_severity

None

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Apache
Apache zookeeper
Vendors & Products Apache
Apache zookeeper
Type Values Removed Values Added
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.
Title Apache ZooKeeper: Sensitive information disclosure in client configuration handling
Weaknesses CWE-532
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Jul 15, 2026, 2:46 AM
Reserved
Jan 21, 2026, 9:37 PM
Status
Modified
Published
Mar 7, 2026, 9:16 AM
Modified
Jul 15, 2026, 2:18 AM
Severity
Moderate
Public date
Mar 7, 2026, 8:51 AM