IBM WebSphere AS 9.0/8.5 Log Injection via LTPA Token
CVE-2026-11538 Published on September 18, 2026
IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
IBM WebSphere Application Server 9.0 and 8.5 is affected by a log injection vulnerability through crafted LTPA token cookies.
Vulnerability Analysis
CVE-2026-11538 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
Improper Output Neutralization for Logs
The software does not neutralize or incorrectly neutralizes output that is written to logs.
Products Associated with CVE-2026-11538
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Affected Versions
IBM WebSphere Application Server:- Version 9.0 is affected.
- Version 8.5 is affected.