CVE-2026-24308
Apache ZooKeeper: Sensitive information disclosure in client configuration handling
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.
INFO
Published Date :
March 7, 2026, 9:16 a.m.
Last Modified :
March 10, 2026, 6:18 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade Apache ZooKeeper to version 3.8.6 or 3.9.5.
- Review client log files for exposed sensitive information.
- Restrict access to log files.
- Apply secure configuration settings.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-24308.
| URL | Resource |
|---|---|
| https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/07/5 | Mailing List Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-24308 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-24308
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-24308 vulnerability anywhere in the article.
-
CybersecurityNews
Apache ZooKeeper Vulnerability Allow Attackers to Access Sensitive Data
Apache ZooKeeper Vulnerability Two “Important” severity vulnerabilities have been disclosed in Apache ZooKeeper, a widely used service for configuration management and naming in distributed applicatio ... Read more
-
Daily CyberSecurity
Critical Bypasses and Secret Leaks Patched in Apache ZooKeeper
The Apache Software Foundation has released an urgent security update for Apache ZooKeeper, the mission-critical service used by thousands of distributed applications for configuration, naming, and sy ... Read more
The following table lists the changes that have been made to the
CVE-2026-24308 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 10, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N -
Initial Analysis by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:* versions from (including) 3.8.0 up to (excluding) 3.8.6 *cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:* versions from (including) 3.9.0 up to (excluding) 3.9.5 Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr Types: Mailing List, Vendor Advisory Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/03/07/5 Types: Mailing List, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Mar. 07, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/03/07/5 -
New CVE Received by [email protected]
Mar. 07, 2026
Action Type Old Value New Value Added 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. Added CWE CWE-532 Added Reference https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr