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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Hbase | < 2.5.15 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/f4l4sjgwb9tb04cqnkpgl6gy3slgvcsjMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/24/23Mailing ListThird Party Advisory
FAQ
What is CVE-2026-49326?
CVE-2026-49326 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...
How severe is CVE-2026-49326?
CVE-2026-49326 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-49326?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Hbase.