CVE-2026-11906: CWE-1284 Improper Validation of Specified Quantity in Input in IBM Db2
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns.
AI Analysis
Technical Summary
CVE-2026-11906 is a vulnerability in IBM Db2 11.5.0 to 11.5.9 and 12.1.0 to 12.1.4 on Linux, UNIX, and Windows platforms, including Db2 Connect Server. It involves improper validation of specified quantity in input (CWE-1284) specifically in the data query logic of XMLTable-derived columns. An authenticated user can exploit this flaw to cause a denial of service condition by leveraging improper neutralization of special elements within queries.
Potential Impact
The vulnerability allows an authenticated user to cause a denial of service (DoS) condition, impacting availability of the affected Db2 service. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented. Until a patch is available, restrict authenticated user privileges to minimize risk of exploitation.
CVE-2026-11906: CWE-1284 Improper Validation of Specified Quantity in Input in IBM Db2
Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns.
CVSS v3.1
Score 6.5medium
Affected software
pkg:maven/com.ibm/db2cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:*:*:*cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:db2:12.1.4:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11906 is a vulnerability in IBM Db2 11.5.0 to 11.5.9 and 12.1.0 to 12.1.4 on Linux, UNIX, and Windows platforms, including Db2 Connect Server. It involves improper validation of specified quantity in input (CWE-1284) specifically in the data query logic of XMLTable-derived columns. An authenticated user can exploit this flaw to cause a denial of service condition by leveraging improper neutralization of special elements within queries.
Potential Impact
The vulnerability allows an authenticated user to cause a denial of service (DoS) condition, impacting availability of the affected Db2 service. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented. Until a patch is available, restrict authenticated user privileges to minimize risk of exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-10T16:11:41.935Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a44256227e9c797195589ee
Added to database: 06/30/2026, 20:21:54 UTC
Last enriched: 06/30/2026, 20:37:35 UTC
Last updated: 06/30/2026, 22:01:53 UTC
Views: 6
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