CVE-2026-46634: Twig: `template_from_string()` escapes a SourcePolicy-driven sandbox via synthesized template name

medium Affects twig/twig. Feed 2026.10.29.1, updated 2026-10-28; published 2026-05-21; advisory modified 2026-09-10.

Twig: `template_from_string()` escapes a SourcePolicy-driven sandbox via synthesized template name

Package: twig/twig Composer
Affected versions: >=3.9.0 and <3.26.0
Fixed in: 3.26.0
Severity: medium
Exploitation: not on CISA KEV · EPSS 1% (49.3th percentile)
Published: 2026-05-21
Source: osv.dev

References

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