CVE-2026-49326Network attack vector

Cross-user row disclosure via unchecked scanner ownership

Published Jul 24, 2026 · Updated Jul 24, 2026

Missing authorization in Apache HBase thrift and REST delegation services allows remote authenticated users to read other users' scan results. Fetch and close accept a server-issued scanner identifier without verifying that the requesting identity owns the stored scanner instance. Affected versions are 2.5.14 and earlier, 2.6.0 through 2.6.5, and 3.0.0-alpha-1 through 3.0.0-beta-1; an authenticated user can disclose rows or interrupt another user's scan.

CVSS severity6.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Apache HBase thrift and REST delegation services allows remote authenticated users to read other users' scan results. Fetch and close accept a server-issued scanner identifier without verifying that the requesting identity owns the stored scanner instance. Affected versions are 2.5.14 and earlier, 2.6.0 through 2.6.5, and 3.0.0-alpha-1 through 3.0.0-beta-1; an authenticated user can disclose rows or interrupt another user's scan.

The record

CVE
CVE-2026-49326
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
The Apache Software Foundation
Product
Apache HBase
Classifications
CWE-862, T1213.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.5.14
  2. Affected versionversion=2.6-alpha <=2.6.5
  3. Affected versionversion=3-alpha <=3.0.0-beta-1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache HBaseversion=0 <=2.5.14; version=2.6-alpha <=2.6.5; version=3-alpha <=3.0.0-beta-1

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1213.006Data from Information Repositories: Databases

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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