Security Bulletin
Summary
IBM WebSphere Application Server Liberty for IBM i is vulnerable to providing weaker than expected security [CVE-2025-14923], improper validation of user-supplied input [CVE-2025-12635], and improperly controlled modification of object prototype attributes in the Immutable package [CVE-2026-29063] as described in the vulnerability details section.
Vulnerability Details
CVEID: CVE-2025-14923
DESCRIPTION: IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.2 IBM WebSphere Application Server Liberty could provide weaker than expected security when using the Security Utility when administering security settings.
CWE: CWE-321: Use of Hard-coded Cryptographic Key
CVSS Source: IBM
CVSS Base score: 4.7
CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2025-12635
DESCRIPTION: IBM WebSphere Application Server 8.5, 9.0 and IBM WebSphere Application Server Liberty 17.0.0.3 through 25.0.0.12 are affected by cross-site scripting due to improper validation of user-supplied input. An attacker could exploit this vulnerability by using a specially crafted URL to redirect the user to a malicious site.
CWE: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS Source: IBM
CVSS Base score: 5.4
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
CVEID: CVE-2026-29063
DESCRIPTION: Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.
CWE: CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CVSS Source: security-advisories@github.com
CVSS Base score: 8.7
CVSS Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM i | 7.6 |
| IBM i | 7.5 |
| IBM i | 7.4 |
| IBM i | 7.3 |
| IBM i | 7.2 |
Remediation/Fixes
| IBM i Release | 5770-SS1 Option 3 PTF Number(s) | PTF Download Link(s) |
| 7.6 | SJ09013 | https://www.ibm.com/mysupport/s/fix-information?legacy=SJ09013 |
| 7.5 | SJ09014 | https://www.ibm.com/mysupport/s/fix-information?legacy=SJ09014 |
| 7.4 | SJ09015 | https://www.ibm.com/mysupport/s/fix-information?legacy=SJ09015 |
| 7.3 | SJ09016 | https://www.ibm.com/mysupport/s/fix-information?legacy=SJ09016 |
| 7.2 | SJ09017 | https://www.ibm.com/mysupport/s/fix-information?legacy=SJ09017 |
IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
02 Apr 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
Was this topic helpful?
Document Information
Modified date:
02 April 2026
Initial Publish date:
02 April 2026
UID
ibm17268448