Denial of Service Vulnerability in IBM Db2 by IBM
CVE-2026-105466

6.5MEDIUM

Key Information:

Vendor

IBM
Status
Db2
Vendor
CVE Published:
12 October 2026

What is CVE-2026-105466?

IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.5 are susceptible to a denial of service attack when operations are performed to insert data into tables containing XML columns. This vulnerability could potentially disrupt service availability if exploited under specific circumstances, necessitating immediate attention and remediation measures to ensure system integrity and performance. Users are advised to review the vendor advisory for patches and mitigation strategies.

Affected Version(s)

Db2 11.5.0 <= 11.5.9

Db2 12.1.0 <= 12.1.5

References

https://www.ibm.com/support/pages/node/7291608
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

.