CVE-2026-24308
Apache ZooKeeper: Sensitive information disclosure in client configuration handling
MEDIUM 6.5
At a glance
- Source
- NVD
- EPSS
- EPSS 1.20 % · percentile 68 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-532 — Insertion of Sensitive Information into Log File
- CWE-117 — Improper Output Neutralization for Logs
References
- https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr
- http://www.openwall.com/lists/oss-security/2026/03/07/5
- 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://access.redhat.com/errata/RHSA-2026:14276
- https://access.redhat.com/errata/RHSA-2026:14272
- https://access.redhat.com/errata/RHSA-2026:8509
- https://access.redhat.com/errata/RHSA-2026:10184
- https://access.redhat.com/errata/RHSA-2026:34608
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CISA-ADP |
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | redhat-SADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-crhr-qqj8-rpxc — Apache ZooKeeper has improper handling of configuration values
European references
- ENISA EUVD · EUVD-2026-10140
- GCVE · GCVE-0-2026-24308
CERT-FR advisories
- CERTFR-2026-AVI-1336 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0933 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0556 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0251 — Multiples vulnérabilités dans Apache Zookeeper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*≥ 3.8.0 < 3.8.6cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*≥ 3.9.0 < 3.9.5
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache ZooKeeper | affected 3.9.0 ≤ 3.9.4 ; affected 3.8.0 ≤ 3.8.5 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |