Path traversal in Mako - CVE-2026-44307

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Main Vulnerability Database Vulnerabilities #VU128467

Path traversal in Mako - CVE-2026-44307

Published: April 29, 2026


Vulnerability identifier: #VU128467
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44307
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within backslash URI on Windows in TemplateLookup.get_template(). A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.


Affected software

Mako
PowerVC

How to mitigate CVE-2026-44307

Install updates from vendor's website.

Mako - update to 1.3.12

External References

Related Security Bulletins