CVE catalog
CVE-2024-23944
zookeeper: CVE-2024-23944
- Severity
- Medium · CVSS 6.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.25% · Oct 25, 2026
Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows an attacker to monitor child znodes by attaching a persistent watcher (addWatch command) to a parent which the attacker has already access to. ZooKeeper server doesn't do ACL check when the persistent watcher is triggered and as a consequence, the full path of znodes that a watch event gets triggered upon is exposed to the owner of the watcher. It's important to note that only the path is exposed by this vulnerability, not the data of znode, but since znode path can contain sensitive information like user name or login ID, this issue is potentially critical. Users are recommended to upgrade to version 3.9.2, 3.8.4 which fixes the issue.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | zookeeper | sid | 3.9.6-2 | fixed |
| Debian | zookeeper | forky | 3.9.6-2 | fixed |
| Debian | zookeeper | trixie | 3.9.3-1+deb13u1 | fixed |
| Debian | zookeeper | bookworm | 3.8.0-11+deb12u2 | fixed |
| Debian | zookeeper | bookworm-security | 3.8.0-11+deb12u1 | vulnerable |
| Ubuntu | zookeeper | 24.04 | 3.8.0-11 | vulnerable |
| Ubuntu | zookeeper | 24.04 | 3.9.1-1 | vulnerable |
| Ubuntu | zookeeper | 24.04 | 3.9.1-1build1 | vulnerable |
| Ubuntu | zookeeper | 24.04 | 3.9.1-1build2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | zookeeper | source | sid | 3.9.2-1 | not yet assigned | Not reported | [1066947] |
| Debian | zookeeper | source | forky | 3.9.2-1 | not yet assigned | Not reported | [1066947] |
| Debian | zookeeper | source | trixie | 3.9.2-1 | not yet assigned | Not reported | [1066947] |
| Debian | zookeeper | source | bookworm | 3.8.0-11+deb12u2 | not yet assigned | Not reported | [1066947] |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://access.redhat.com/errata/RHSA-2024:6536]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-23944]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-23944]
- [https://security-tracker.debian.org/tracker/CVE-2024-23944]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1641.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]