Mako is a template library written in Python.
CVE-2026-44307
Mako is a template library written in Python. Prior to 1.3.12, on Windows, a URI using backslash traversal (e.g. \..\..\ secret.txt) bypasses the directory traversal check in Template.init and the posixpath-based normalization in TemplateLookup.gettemplate(), allowing reads of files outside the configured template directory. This vulnerability is fixed in 1.3.12.
Assessment
- CVSS
- 8.7 (v4.0)
- Severity
- High
- EPSS
- 0.74% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 12 May 2026
- Last updated
- 26 October 2026
- Affected
- sqlalchemy · mako
- Weakness
- CWE-22
- Assigner
- security-advisories@github.com
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
At the source
References
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