CVE-2026-105466: CWE-770 Allocation of Resources Without Limits or Throttling in IBM Db2
Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to a denial of service when inserting into a table with XML columns under specific conditions.
CVSS v3.1
Score 6.5medium
Affected software
IBM
Db2
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:aix:*:*cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:aix:*:*cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:aix:*:*cpe:2.3:a:ibm:db2:12.1.5:*:*:*:*:aix:*:*cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:linux:*:*cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:linux:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects IBM Db2 database versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.5. It is caused by improper resource allocation controls during insert operations on tables containing XML columns. An attacker with low privileges can trigger a denial of service by causing excessive resource consumption, leading to service disruption. The CVSS 3.1 base score is 6.5, reflecting a medium severity with network attack vector, low attack complexity, requiring privileges, no user interaction, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service, causing unavailability of the affected IBM Db2 database service. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, monitor and restrict insert operations on tables with XML columns to trusted users with necessary privileges to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-10-05T14:50:51.572Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acd2f252cdf04f656c3e8b6
Added to database: 10/12/2026, 19:04:05 UTC
Last enriched: 10/12/2026, 19:18:57 UTC
Last updated: 10/12/2026, 23:19:06 UTC
Views: 8
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