Medium 6.5Published Mar 7, 2026

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

Updated under an hour ago (Oct 27, 2026, 5:30 AM ET)

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It affects Apache Software Foundation Apache ZooKeeper and 11 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache ZooKeeper

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-532, CWE-117
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache ZooKeeper apache_software_foundation:apache_zookeeper (from the name)	from 3.9.0 through 3.9.4; from 3.8.0 through 3.8.5	CNA record
Red Hat Red Hat AMQ Broker 7.12.7 redhat:amq_broker	7.12	CISA ADP
Red Hat Streams for Apache Kafka 2.9.4 redhat:amq_streams	2.9	CISA ADP
Red Hat Red Hat OpenShift AI 2.25 redhat:openshift_ai	from 1776756834 not affected	CISA ADP
Red Hat Red Hat build of Apache Camel for Spring Boot 4 redhat:camel_spring_boot	4	CISA ADP
Red Hat Red Hat build of Debezium 2 redhat:debezium	2	CISA ADP
Red Hat Red Hat Data Grid 8 redhat:jboss_data_grid	8	CISA ADP
Red Hat Red Hat Fuse 7 redhat:jboss_fuse	7	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform 7 redhat:jboss_enterprise_application_platform	7	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp	All versions	CISA ADP
1–10 of 12

References

References

https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/03/07/5	mailing-list, third-party-advisory
https://access.redhat.com/errata/RHSA-2026:10184
https://access.redhat.com/errata/RHSA-2026:14272
https://access.redhat.com/errata/RHSA-2026:14276
https://access.redhat.com/errata/RHSA-2026:34608
https://access.redhat.com/errata/RHSA-2026:8509
https://access.redhat.com/security/cve/CVE-2026-24308
https://bugzilla.redhat.com/show_bug.cgi?id=2445451
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24308.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.