IBM WebSphere Application Server 9.0 and 8.5 is affected by a log injection vulnerability through crafted LTPA token cookies. (CVE-2026-11538)
IBM WebSphere Application Server versions 9.0 and 8.5 have a log injection vulnerability via crafted LTPA token cookies. This vulnerability allows an attacker to inject malicious content into logs but does not impact confidentiality or availability. The CVSS score is low, reflecting limited impact and high attack complexity.
AI Analysis
Technical Summary
CVE-2026-11538 identifies a log injection vulnerability in IBM WebSphere Application Server 9.0 and 8.5. The flaw arises from insufficient sanitization of crafted LTPA token cookies, enabling injection of arbitrary content into application logs. The vulnerability has a CVSS 3.1 base score of 3.7 (low severity), with network attack vector, high attack complexity, no privileges required, and no user interaction needed. The impact is limited to integrity (log integrity) with no confidentiality or availability effects.
Potential Impact
The vulnerability allows an attacker to inject arbitrary content into logs, potentially misleading log analysis or hiding malicious activity. There is no direct impact on confidentiality or availability of the system. No known exploits are reported in the wild.
Mitigation Recommendations
No vendor advisory or patch information is provided. Patch status is not yet confirmed—check IBM's official advisory for current remediation guidance. Until a fix is available, monitor for suspicious LTPA token cookie activity and consider restricting or validating cookie inputs if possible.
IBM WebSphere Application Server 9.0 and 8.5 is affected by a log injection vulnerability through crafted LTPA token cookies. (CVE-2026-11538)
Description
IBM WebSphere Application Server versions 9.0 and 8.5 have a log injection vulnerability via crafted LTPA token cookies. This vulnerability allows an attacker to inject malicious content into logs but does not impact confidentiality or availability. The CVSS score is low, reflecting limited impact and high attack complexity.
CVSS v3.1
Score 3.7low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11538 identifies a log injection vulnerability in IBM WebSphere Application Server 9.0 and 8.5. The flaw arises from insufficient sanitization of crafted LTPA token cookies, enabling injection of arbitrary content into application logs. The vulnerability has a CVSS 3.1 base score of 3.7 (low severity), with network attack vector, high attack complexity, no privileges required, and no user interaction needed. The impact is limited to integrity (log integrity) with no confidentiality or availability effects.
Potential Impact
The vulnerability allows an attacker to inject arbitrary content into logs, potentially misleading log analysis or hiding malicious activity. There is no direct impact on confidentiality or availability of the system. No known exploits are reported in the wild.
Mitigation Recommendations
No vendor advisory or patch information is provided. Patch status is not yet confirmed—check IBM's official advisory for current remediation guidance. Until a fix is available, monitor for suspicious LTPA token cookie activity and consider restricting or validating cookie inputs if possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wgpc-w629-m235
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-11538"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aade4e655bf5e2cf5ed9ef0
Added to database: 09/19/2026, 01:27:02 UTC
Last enriched: 09/19/2026, 01:33:31 UTC
Last updated: 09/19/2026, 05:01:24 UTC
Views: 7
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