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Vulnerability record · CVE-2026-24308 · published 7 March 2026

CVE-2026-24308: Apache zookeeper sensitive information in log file vulnerability

Apache · Zookeeper

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.

7.5 CVSS 3.1 High EPSS 1.2% · top 33.7% CWE-532 · Sensitive information in log fileCWE-117 · CWE-117
7.5CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
15 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/03/07/5 Mailing ListThird 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

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-24308), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.