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CVE-2026-49326— Apache HBase: Missing scanner instance owner check in thrift delegation service

Quick assessment

Affected
Apache Software Foundation Apache HBase
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache hbase是美国Apache基金会开源的一个分布式NoSQL数据库。 Apache HBase 3.0.0-alpha-1至3.0.0-beta-1版本、2.6.0至2.6.5版本、2.5.0至2.5.14版本和2.4.*及之前版本存在授权问题漏洞，该漏洞源于thrift/rest delegation服务中fetch和close步骤缺少owner检查，导致授权缺失，用户可获取其他用户打开的扫描仪的行，并关闭其他用户的扫描仪。

AI Predicted 7.5 Difficulty: Easy EPSS 0.49% · P40

Affected Version Matrix 3

VendorProduct Version RangeStatus
Apache Software Foundation Apache HBase ≤ 2.5.14 affected
2.6-alpha≤ 2.6.5 affected
3-alpha≤ 3.0.0-beta-1 affected
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I. Basic Information for CVE-2026-49326

Vulnerability Information
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Vulnerability Title
Apache HBase: Missing scanner instance owner check in thrift delegation service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Apache HBase 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache hbase是美国Apache基金会开源的一个分布式NoSQL数据库。 Apache HBase 3.0.0-alpha-1至3.0.0-beta-1版本、2.6.0至2.6.5版本、2.5.0至2.5.14版本和2.4.*及之前版本存在授权问题漏洞，该漏洞源于thrift/rest delegation服务中fetch和close步骤缺少owner检查，导致授权缺失，用户可获取其他用户打开的扫描仪的行，并关闭其他用户的扫描仪。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache HBase 0 ~ 2.5.14 -

II. Public POCs for CVE-2026-49326

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III. Intelligence Information for CVE-2026-49326

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Mailing List Discussions for CVE-2026-49326 (1)

Same Patch Batch · Apache Software Foundation · 2026-07-24 · 11 CVEs total

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IV. Related Vulnerabilities

Same product: Apache HBase
Same vendor: Apache Software Foundation
Same weakness: CWE-862

V. Comments for CVE-2026-49326

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