Denial of Service Vulnerability in IBM Db2 for Multiple Platforms
CVE-2026-11906

6.5MEDIUM

Key Information:

Vendor

IBM
Status
Db2
Vendor
CVE Published:
30 June 2026

What is CVE-2026-11906?

An authenticated user may exploit a vulnerability in IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 across Linux, UNIX, and Windows platforms. This vulnerability arises from the improper handling of special elements within the data query logic of XMLTable-derived columns. Successful exploitation can lead to a denial of service, adversely affecting the availability of the Db2 service.

Affected Version(s)

Db2 11.5.0 <= 11.5.9

Db2 12.1.0 <= 12.1.4

References

https://www.ibm.com/support/pages/node/7277423
vendor-advisorypatch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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