CVE-2026-3626 is a vulnerability in IBM Concert versions 1.0.0 through 3.0.0 where detailed error messages containing sensitive information are generated and returned to the browser. This information disclosure could be leveraged by remote attackers to gain insights useful for subsequent attacks. The vulnerability is categorized under CWE-209 (Generation of Error Message Containing Sensitive Information). The CVSS 3.1 base score is 5.3, reflecting a medium severity with network attack vector, low attack complexity, no privileges required, no user interaction, and limited confidentiality impact.

The vulnerability allows remote attackers to obtain sensitive information through detailed error messages exposed in the browser. This information disclosure could facilitate further attacks against the affected system. There is no indication of impact on integrity or availability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or fix information is provided, users should monitor IBM's advisories for updates. Until a fix is available, consider configuring the application to suppress detailed error messages in production environments to reduce information leakage.