Denial of Service Vulnerability in IBM Db2 Database Products
CVE-2026-104332

5.5MEDIUM

Key Information:

Vendor

IBM
Status
Db2
Vendor
CVE Published:
12 October 2026

What is CVE-2026-104332?

IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.5 are vulnerable to a denial of service attack triggered by executing a specifically crafted query utilizing a Materialized Query Table. This vulnerability allows attackers to disrupt the availability of the Db2 service, potentially leading to service downtime and loss of productivity. Users are advised to review the vendor's advisory for mitigation steps and updates.

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/7291614
vendor-advisorypatch

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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