Security Bulletin
Summary
Db2 Query Management Facility is vulnerable to IBM SDK, Java Technology Edition Quarterly CPU - Jul 2026 - Includes Oracle July 2026 CPU plus four additional vulnerabilities
Vulnerability Details
CVEID: CVE-2026-41254
DESCRIPTION: Little CMS (lcms2) through 2.18 has an integer overflow in CubeSize in cmslut.c because the overflow check is performed after the multiplication.
CWE: CWE-696: Incorrect Behavior Order
CVSS Source: NVD
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-47057
DESCRIPTION: Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Java SE.
CWE: CWE-400: Uncontrolled Resource Consumption
CVSS Source: secalert_us@oracle.com
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-47063
DESCRIPTION: Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE accessible data.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVEID: CVE-2026-47058
DESCRIPTION: Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE accessible data as well as unauthorized access to critical data or complete access to all Java SE accessible data.
CWE: CWE-502: Deserialization of Untrusted Data
CVSS Source: secalert_us@oracle.com
CVSS Base score: 7.4
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
CVEID: CVE-2026-60147
DESCRIPTION: Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE accessible data as well as unauthorized read access to a subset of Java SE accessible data.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVEID: CVE-2026-46968
DESCRIPTION: Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE accessible data.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 5.9
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVEID: CVE-2026-47027
DESCRIPTION: Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 5.3
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2026-47021
DESCRIPTION: Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE.
CWE: CWE-400: Uncontrolled Resource Consumption
CVSS Source: secalert_us@oracle.com
CVSS Base score: 5.3
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2026-47059
DESCRIPTION: Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 3.7
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2026-47010
DESCRIPTION: Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 3.7
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2026-8400
DESCRIPTION: IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty Continuous delivery has a flaw in the ORB component in IBM SDK, Java Technology Edition, may allow a malicious IIOP server to induce loading and instantation of arbitrary classes.
CWE: CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
CVSS Source: IBM
CVSS Base score: 8.1
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2026-16439
DESCRIPTION: In Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trace method arguments can lead to buffer underflow.
CWE: CWE-124: Buffer Underwrite ('Buffer Underflow')
CVSS Source: NVD
CVSS Base score: 9.1
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
CVEID: CVE-2026-16441
DESCRIPTION: In Eclipse OpenJ9 versions up to 0.60, when executing class files where a previously concrete superclass method has been recompiled as abstract, execution is incorrectly delegated to an interface default method.
CWE: CWE-758: Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
CVSS Source: NVD
CVSS Base score: 9.6
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H)
CVEID: CVE-2026-16243
DESCRIPTION: In Eclipse OMR versions up to 0.11, the arraycmp SIMD implementation for Z and P does not check if the number of bytes to compare is zero.
CWE: CWE-125: Out-of-bounds Read
CVSS Source: NVD
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| DB2 Query Management Facility for z/OS | 12.2.0.5 |
| DB2 Query Management Facility for z/OS | 13.1 |
Remediation/Fixes
Use the following instructions to download the latest JRE version from the IBM Java download portal and replace it with the JRE you are currently invoking.
Steps to update Java - QMF for Workstation:
1. Download JRE 8.0.8.70 version from IBM Java download portal.
2. Close QMF for workstation, if any instance is running.
3. Copy 8.0.8.70 JRE version to C:\Program Files\IBM\Db2 Query Management Facility\QMF for Workstation\jre. (QMF install directory)
4. Start application
Observations:
- While updating java in QMF for workstation for z/OS and Multiplatform build versions from 12.2.0.1 to 12.2.0.4 will reflect some issue for scheduled tasks after java update. Please update to QMF 12.2.0.5 before applying the java update for scheduled tasks to run without any issues.
- After migrating to QMF 12.2.0.5, update the java using above steps. To run Visual Reports, please set below 3 VM arguments in C:\Program Files\IBM\Db2 Query Management Facility\QMF for Workstation\eclipse.ini (QMF install directory)
-Djdk.xml.xpathExprGrpLimit=0
-Djdk.xml.xpathExprOpLimit=0
-Djdk.xml.xpathTotalOpLimit=0
Steps to update Java - QMF Vision:
For Windows:
1. Go to:
- https://adoptopenjdk.net/releases.html
- https://adoptium.net/temurin/releases/?version=8&os=windows&arch=x64&package=jre
2. Download "jdk8u502-b07" (JRE Architecture) and extract the files to a temporary location
3. Go to Services and stop below QMF Vision services:
- IBM QMF Vision Data Processing service
- IBM QMF Vision Indexing service
- IBM QMF Vision Session service
- IBM QMF Vision Web service
- QMFServerLite
4. Delete jre folder from C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\elasticsearch\java\jre
5. Copy-paste folder jdk8u502-b07 to C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\elasticsearch\java. (QMF Vision install directory)
6. Rename folder jdk8u502-b07 to jre.
7. Restart Windows Services:
- IBM QMF Vision Data Processing service
- IBM QMF Vision Indexing service
- IBM QMF Vision Session service
- IBM QMF Vision Web service
- QMFServerLite
For Linux and zLinux:
QMF Vision versions 12.2.0.5 Interim 3 and 13.1 Interim 2 require Linux 7 for installation. As Linux 7 has reached its maintenance end-of-life (EOL), we recommend upgrading to QMF Vision 13.1.3, which supports Linux 9. For detailed upgrade instructions, refer to Upgrading QMF Vision.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
01 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:
01 September 2026
Initial Publish date:
01 September 2026
UID
ibm17285922