CVE-2026-48807: Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

medium Affects twig/twig. Feed 2026.10.29.1, updated 2026-10-28; published 2026-06-30; advisory modified 2026-09-10.

Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

Package: twig/twig Composer
Affected versions: <3.27.0 or >=1.0.0 and <2.0.0 or >=2.0.0 and <3.0.0 or >=3.0.0 and <3.27.0
Fixed in: 3.27.0
Severity: medium
Exploitation: not on CISA KEV · EPSS 0% (30.4th percentile)
Published: 2026-06-30
Source: osv.dev

References

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