Apache ZooKeeper up to 3.9.3 AdminServer Interface insufficient permissions or privileges

Summaryinfo

A vulnerability labeled as critical has been found in Apache ZooKeeper up to 3.9.3. This issue affects some unknown processing of the component AdminServer Interface. The manipulation results in insufficient permissions or privileges. This vulnerability is reported as CVE-2025-58457. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Apache ZooKeeper up to 3.9.3. Affected is an unknown part of the component AdminServer Interface. The manipulation with an unknown input leads to a insufficient permissions or privileges vulnerability. CWE is classifying the issue as CWE-280. The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Improper permission check in ZooKeeper AdminServer lets authorized clients to run snapshot and restore command with insufficient permissions. This issue affects Apache ZooKeeper: from 3.9.0 before 3.9.4. Users are recommended to upgrade to version 3.9.4, which fixes the issue. The issue can be mitigated by disabling both commands (via admin.snapshot.enabled and admin.restore.enabled), disabling the whole AdminServer interface (via admin.enableServer), or ensuring that the root ACL does not provide open permissions. (Note that ZooKeeper ACLs are not recursive, so this does not impact operations on child nodes besides notifications from recursive watches.)

The advisory is shared for download at lists.apache.org. This vulnerability is traded as CVE-2025-58457 since 09/02/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/19/2026). The MITRE ATT&CK project declares the attack technique as T1222.

The vulnerability scanner Nessus provides a plugin with the ID 266036 (Linux Distros Unpatched Vulnerability : CVE-2025-58457), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.9.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202509-3884), Tenable (266036), EUVD (EUVD-2025-30955) and CERT Bund (WID-SEC-2026-0783). Once again VulDB remains the best source for vulnerability data.

Affected

• IBM QRadar SIEM

Productinfo

Vendor

• Apache

Name

• ZooKeeper

Version

• 3.9.0
• 3.9.1
• 3.9.2
• 3.9.3

License

• open-source

Website

• Vendor: https://www.apache.org/

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Once again VulDB remains the best source for vulnerability data.

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