CVE-2026-49981

Summary

Twig is a template language for PHP. Prior to 3.27.0, the per-template filter, tag, and function allow-list verdict is computed when a Template instance is constructed and can remain cached after sandbox state changes between renders, allowing a later sandboxed render to reuse a template that was originally checked with a different or empty policy. This issue is fixed in version 3.27.0.

Affected Software

Weaknesses

• CWE-693: CWE-693: Protection Mechanism Failure
• CWE-863: CWE-863: Incorrect Authorization

References

• https://github.com/twigphp/Twig/security/advisories/GHSA-529h-vh3j-85hq
• https://github.com/twigphp/Twig/commit/23eb6eb1267cb0d303b91eb5cff9b0c559c538a4
• https://github.com/twigphp/Twig/releases/tag/v3.27.0

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