Security Bulletin
Summary
IBM Db2 is shipped as a component of IBM Guardium Key Lifecycle Manager (SKLM/GKLM). Information about multiple security vulnerabilities affecting IBM Db2 has been published in security bulletins.
Vulnerability Details
Refer to the security bulletin(s) listed in the Remediation/Fixes section
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Guardium Key Lifecycle Manager | 4.1, 4.1.1, 4.2, 4.2.1, 5.0, 5.1 |
| Principal Product and Version(s) | Affected Supporting Product and Version |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 | IBM Db2 11.5.4 |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | IBM Db2 11.5.8 |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | IBM Db2 11.5.8 |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | IBM Db2 11.5.9 |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | IBM Db2 12.1.0 |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 | IBM Db2 12.1.3 |
Remediation/Fixes
IBM strongly encourages customers to update their systems promptly.
1) Security Bulletin: IBM® Db2® could allow a local attacker to cause a denial of service due to a memory leak (CVE-2026-18096)
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282953
|
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
2) Security Bulletin: IBM® Db2® federated server could allow a local attacker to obtain sensitive information due to the logging of plain text passwords in trace files. (CVE-2026-18097)
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282952
|
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
3) Security Bulletin: IBM® Db2® is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data. (CVE-2026-16480)
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282951
|
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
4) Security Bulletin: IBM® Db2® is vulnerable to privilege escalation with a specially crafted query (CVE-2026-10543)
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282949
|
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
5) Security Bulletin: IBM® Db2® is vulnerable to buffer overflow in the IXF IMPORT parser (CVE-2026-10534)
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7279461
|
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
6) Security Bulletin: IBM® Db2® federated server is affected by a vulnerability in commons-configuration2-2.10.1 (CVE-2026-45205)
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282948
|
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
7) Security Bulletin: IBM® Db2® federated server is affected by multiple vulnerabilities in Netty open source libraries.
| Principal Product and Version(s) | Remediation/ Fixes |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282947
|
| IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
| IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 |
8) Security Bulletin: IBM® Db2® is affected by multiple vulnerabilities in Corosync 3.1.9 (CVE-2026-35091, CVE-2026-35092)
|
Principal Product and Version(s) |
Remediation/ Fixes |
|
IBM Guardium Key Lifecycle Manager (GKLM) v4.1 |
Please consult following security bulletin from IBM Db2 for more details: https://www.ibm.com/support/pages/node/7282946
|
|
IBM Guardium Key Lifecycle Manager (GKLM) v4.1.1 | |
|
IBM Guardium Key Lifecycle Manager (GKLM) v4.2 | |
|
IBM Guardium Key Lifecycle Manager (GKLM) v4.2.1 | |
|
IBM Guardium Key Lifecycle Manager (GKLM) v5.0 | |
|
IBM Guardium Key Lifecycle Manager (GKLM) v5.1 |
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
08 Sep 2026: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
08 September 2026
Initial Publish date:
08 September 2026
UID
ibm17286594