high8.7
CVE-2026-24308
Apache ZooKeeper has improper handling of configuration values
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.zookeeper:zookeeper | >= 3.9.0, < 3.9.5 | 3.9.5 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Zookeeper | from 3.8.0 before 3.8.6 from 3.9.0 before 3.9.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr
- http://www.openwall.com/lists/oss-security/2026/03/07/5
- 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
- https://github.com/advisories/GHSA-crhr-qqj8-rpxc
- https://nvd.nist.gov/vuln/detail/CVE-2026-24308
- https://github.com/apache/zookeeper/releases/tag/release-3.8.6
- https://github.com/apache/zookeeper/releases/tag/release-3.9.5