CVE-2026-41205

A flaw was found in Mako, a Python template library. This vulnerability, known as path traversal, allows an attacker to access files outside of the intended directory. By providing a specially crafted input to the TemplateLookup.get_template() function, a remote attacker can exploit an inconsistency in how the system handles URIs starting with //. This could lead to the disclosure of sensitive information from any file readable by the affected application.

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.

To mitigate this issue, applications utilizing the Mako template library must validate and sanitize all input before passing it to the TemplateLookup.get_template() function. Implementing robust input validation routines within applications will prevent specially crafted URIs from traversing outside intended directories and accessing sensitive files.