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TI-2026-36509 Aliases CVE-2026-49326GHSA-4hqf-vmxx-hj9h

Apache HBase: Missing scanner instance owner check in thrift delegation service

Priority LOW 29CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00492 42nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache HBaseup to 2.5.14; 2.6-alpha – 2.6.5; 3-alpha – 3.0.0-beta-1—No fix listedCNA
  • Apache HBase VendorApache Affected up to 2.5.14; 2.6-alpha – 2.6.5; 3-alpha – 3.0.0-beta-1 Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:apache:hbase:*:*:*:*:*:*:*:*before 2.5.15; 2.6.0 to before 2.6.6VulnerableApache
cpe:2.3:a:apache:hbase:3.0.0:alpha1:*:*:*:*:*:*3.0.0 alpha1VulnerableApache
cpe:2.3:a:apache:hbase:3.0.0:alpha2:*:*:*:*:*:*3.0.0 alpha2VulnerableApache
cpe:2.3:a:apache:hbase:3.0.0:alpha3:*:*:*:*:*:*3.0.0 alpha3VulnerableApache
cpe:2.3:a:apache:hbase:3.0.0:alpha4:*:*:*:*:*:*3.0.0 alpha4VulnerableApache
cpe:2.3:a:apache:hbase:3.0.0:beta1:*:*:*:*:*:*3.0.0 beta1VulnerableApache
  • cpe:2.3:a:apache:hbase:*:*:*:*:*:*:*:* Versions before 2.5.15; 2.6.0 to before 2.6.6 Vulnerable ·Apache
  • cpe:2.3:a:apache:hbase:3.0.0:alpha1:*:*:*:*:*:* Versions 3.0.0 alpha1 Vulnerable ·Apache
  • cpe:2.3:a:apache:hbase:3.0.0:alpha2:*:*:*:*:*:* Versions 3.0.0 alpha2 Vulnerable ·Apache
  • cpe:2.3:a:apache:hbase:3.0.0:alpha3:*:*:*:*:*:* Versions 3.0.0 alpha3 Vulnerable ·Apache
  • cpe:2.3:a:apache:hbase:3.0.0:alpha4:*:*:*:*:*:* Versions 3.0.0 alpha4 Vulnerable ·Apache
  • cpe:2.3:a:apache:hbase:3.0.0:beta1:*:*:*:*:*:* Versions 3.0.0 beta1 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-49326
  2. 2026-10-03 Alias added: GHSA-4hqf-vmxx-hj9h

References

Advisory 2

  • TI-2015-01649 Apache HBase 0.98 before 0.98.12.1, 1.0 before 1.0.1.1, and 1.1 before 1.1.0.1, as used… CVSS 3.0HIGH 7.3
  • TI-2019-11644 An issue was discovered in the protobuf crate before 2.6.0 for Rust. CVSS 3.1HIGH 7.5
  • TI-2019-00185 Improper authorization in Apache HBase CVSS 3.0HIGH 7.5
  • TI-2018-05802 Race condition in Apache HBase CVSS 3.0HIGH 8.1
  • TI-2013-01959 Apache HBase 0.92.x before 0.92.3 and 0.94.x before 0.94.9, when the Kerberos features… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences