GHSA-r978-9m6m-6gm6 · Severity: medium · Ecosystem: maven — Apache ZooKeeper vulnerable to information disclosure in persistent watchers handling
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.
Conclusion & alert: CVE-2024-23944 is rated Low Risk (23.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-21 | 0.15% | 0.03% | -0.13% |
| 2 | 2025-11-18 | 0.04% | 0.15% | +0.11% |
| 3 | 2025-04-23 | — | 0.04% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
1.8 | 3.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-r978-9m6m-6gm6 · Severity: medium · Ecosystem: maven — Apache ZooKeeper vulnerable to information disclosure in persistent watchers handling
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2024-23944 not yet assigned priority: Debian including 1 source packages (zookeeper), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2024-23944 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2024-23944 |
ubuntu
|
medium | CVE-2024-23944 medium priority: Ubuntu including 1 source packages (zookeeper), 11 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 7, ignored 2, needed 1, released 1. | https://ubuntu.com/security/CVE-2024-23944 |
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79k | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2024/03/14/2 | Mailing List |