IBM Concert 1.0-3.0.0 Local Cache Leakage to Other Users
CVE-2026-4405 Published on October 19, 2026
IBM Concert Software Use of Web Browser Cache Containing Sensitive Information
IBM Concert 1.0 through 3.0.0 allows web page cache to be stored locally which can be read by another user on the system.
Vulnerability Analysis
CVE-2026-4405 can be exploited with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Use of Web Browser Cache Containing Sensitive Information
The web application does not use an appropriate caching policy that specifies the extent to which each web page and associated form fields should be cached.
Products Associated with CVE-2026-4405
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Affected Versions
IBM Concert:- Version 1.0.0, <= 3.0.0 is affected.