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CVE-2026-49326

6.5 · MEDIUM

Missing Authorization vulnerability in Apache HBase thrift and rest delegation service.

Published Jul 24, 2026CWE-862EPSS 0.49%

Overview

CVE-2026-49326 is a medium-severity vulnerability. It was published on July 24, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Missing Authorization vulnerability in Apache HBase thrift and rest delegation service.

A scan operation in thrift/rest service has 3 steps, open, fetch(possible multiple times), close.

The open step will return an id which will be passed back to server for identifying the scanner instances stored at server side.

We missed the owner check in fetch and close steps which means a user can fetch rows from the scanner which is opened by other users, and close scanners which belongs to other users.

This issue affects Apache HBase:from 3.0.0-alpha-1 through 3.0.0-beta-1, from 2.6.0 through 2.6.5, from 2.5.0 through 2.5.14, through 2.4.*.

Users are recommended to upgrade to version 3.0.0-beta-2, 2.6.6 and 2.5.15, which fixes the issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.apache.org/thread/f4l4sjgwb9tb04cqnkpgl6gy3slgvcsjRefwww.openwall.com/lists/oss-security/2026/07/24/23

How CyberStrike helps

Frequently asked questions

What is CVE-2026-49326?

CVE-2026-49326 is a medium-severity vulnerability. It was published on July 24, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-49326?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-49326?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-49326?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-49326 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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