6.5

CVE-2026-49326: apache software foundation apache hbase Missing Authorization

CVSS: 6.5v3.1MediumAnalyzed
Published 24-07-2026Last modified 24-07-2026
Open JSON

Vulnerability summary

CVE-2026-49326 is a medium (CVSS 6.5) Missing Authorization vulnerability in apache software foundation apache hbase. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.2% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.49%
0%100%
Low · +0.18 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-07-2026
    PublishedVulnerability first disclosed.
  2. 24-07-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

+0.18 pp

From 0.31% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • hbase< 2.5.15 | ≥ 2.6.0, < 2.6.6 | 3.0.0:alpha1 | 3.0.0:alpha2 | 3.0.0:alpha3 | 3.0.0:alpha4 | 3.0.0:beta1
Apache software foundation1 product
  • apache hbase≤ 2.5.14 | ≥ 2.6-alpha, ≤ 2.6.5 | ≥ 3-alpha, ≤ 3.0.0-beta-1

2 vendors · 2 products

References

2 links