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Vulnerability advisory

GHSA-52m2-vc4m-jj33

Twig may load a template outside a configured directory when using the filesystem loader

Published Updated OSV record ↗

Also known as BIT-drupal-2022-39261CVE-2022-39261DRUPAL-CORE-2022-016

Severity
  • CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected versions

twig/twig Packagist

All twig/twig advisories →
AffectedFixed in
1.0.0 to before 1.44.71.44.7Advisories →
Also listed as affected (113)
2.0.0 to before 2.15.32.15.3Advisories →
Also listed as affected (57)
3.0.0 to before 3.4.33.4.3Advisories →
Also listed as affected (23)

Description

Description

When using the filesystem loader to load templates for which the name is a user input, it is possible to use the source or include statement to read arbitrary files from outside the templates directory when using a namespace like @somewhere/../some.file (in such a case, validation is bypassed).

Resolution

We fixed validation for such template names.

Even if the 1.x branch is not maintained anymore, a new version has been released.

Credits

We would like to thank Dariusz Tytko for reporting the issue and Fabien Potencier for fixing the issue.

References

  • Codex
  • Claude Code
  • VS Code
  • GitHub Copilot
  • Cursor
  • Cline
  • Windsurf
  • Google Anti-gravity
  • OpenCode
  • Pi
  • Gemini CLI
  • Hermes Agent
  • Zed
  • Junie
  • Qwen Code
  • Kiro
  • Kilo Code
  • Factory Droid

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