CVE-2026-18166: CWE-284 Improper Access Control in IBM Db2
Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to obtain sensitive information due to improper authorization when using the CREATE WRAPPER command.
CVSS v3.1
Score 7.7high
Affected software
IBM
Db2
pkg:maven/com.ibm.db2/db2cpe: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:*:*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
This vulnerability, identified as CWE-284 (Improper Access Control), affects IBM Db2 versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.5. A remote attacker with valid authentication privileges can exploit improper authorization checks when executing the CREATE WRAPPER command to access sensitive information. The CVSS 3.1 base score is 7.7, reflecting a high severity with network attack vector, low attack complexity, required privileges, no user interaction, and a confidentiality impact classified as high.
Potential Impact
An authenticated remote attacker can leverage this vulnerability to gain unauthorized access to sensitive information within the affected IBM Db2 instances. The integrity and availability of the system are not impacted. There is no evidence of known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the CREATE WRAPPER command to trusted users only and monitor for suspicious activity related to this command.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-28T20:24:59.698Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acd2f252cdf04f656c3e8b8
Added to database: 10/12/2026, 19:04:05 UTC
Last enriched: 10/12/2026, 19:18:34 UTC
Last updated: 10/12/2026, 23:19:06 UTC
Views: 10
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