Mako is a template library written in Python.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Apr 23, 2026 · NIST NVD

   Detected

   Mako is a template library written in Python. Prior to 1.3.11, TemplateLookup.get_template() is vulnerable to path traversal when a URI starts with // (e.g., //../../../secret.txt). The root cause is an inconsistency between two slash-stripping implementations. Any file readable by the process can be returned as rendered template content when an application passes untrusted input directly to Templ

2. Jun 17, 2026 · NIST NVD

   Updated

   Mako is a template library written in Python. Prior to 1.3.11, TemplateLookup.get_template() is vulnerable to path traversal when a URI starts with // (e.g., //../../../secret.txt). The root cause is an inconsistency between two slash-stripping implementations. Any file readable by the process can be returned as rendered template content when an application passes untrusted input directly to Templ

Affected

• cpe sqlalchemy/makoversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-41205

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-41205

  Mako is a template library written in Python. Prior to 1.3.11, TemplateLookup.get_template() is vulnerable to path traversal when a URI starts with // (e.g., //../../../secret.txt). The root cause is an inconsistency between two slash-stripping implementations. Any file readable

  nvd.nist.gov

References

• Reference · github.com
• Reference · github.com
• Mitigation · github.com