CVE-2026-24308: medium-severity vulnerability in Apache ZooKeeper
Apache ZooKeeper: Sensitive information disclosure in client configuration handling
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 1.3%
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:L/UI:N/S:U/C:H/I:N/A:N
Affected products
Apache Software Foundation · Apache ZooKeeperRelated CVEs — Apache ZooKeeper
In the same product, most dangerous first.
CVE-2017-5637—CVE-2017-5637EPSS 73.1%CVE-2019-0201—CVE-2019-0201EPSS 9.7%CVE-2018-8012—CVE-2018-8012EPSS 8.4%CVE-2023-44981CRITICALApache ZooKeeper: Authorization bypass in SASL Quorum Peer AuthenticationEPSS 2.2%CVE-2024-51504CRITICALApache ZooKeeper: Authentication bypass with IP-based authentication in Admin ServerEPSS 0.9%CVE-2026-84501MEDIUMApache ZooKeeper: Operational log forgery via newline injection in EnsembleAuthenticationProviderEPSS 0.7%
References
https://access.redhat.com/errata/RHSA-2026:10184https://access.redhat.com/errata/RHSA-2026:14272https://access.redhat.com/errata/RHSA-2026:14276https://access.redhat.com/errata/RHSA-2026:34608https://access.redhat.com/errata/RHSA-2026:8509https://access.redhat.com/security/cve/CVE-2026-24308https://bugzilla.redhat.com/show_bug.cgi?id=2445451https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdrhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24308.jsonhttp://www.openwall.com/lists/oss-security/2026/03/07/5