CVE-2026-34763

A flaw was found in Rack. A remote attacker could exploit a vulnerability in Rack::Directory's handling of root paths. When the configured root path contains special regular expression characters, the directory listing generation can fail to properly strip the path prefix. This can lead to the exposure of the full filesystem path in the HTML output, potentially revealing sensitive system information.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.