CVE-2026-48806: Twig: Sandbox `__toString()` policy bypass via dynamic mapping keys

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

Twig: Sandbox `__toString()` policy bypass via dynamic mapping keys

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% (36.0th percentile)
Published
2026-06-30
Source
osv.dev

References

CWE-693CWE-863
NVD recordtwig/twig advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs   How findings are ranked

Related advisories