CVE-2026-55878: symfony/ux-toolkit: Path Traversal Allows Arbitrary File Write and Read via Crafted Recipe Manifest

high Affects symfony/ux-toolkit. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

symfony/ux-toolkit: Path Traversal Allows Arbitrary File Write and Read via Crafted Recipe Manifest

Package
symfony/ux-toolkit Composer
Affected versions
>=2.32.0 and <2.36.1 or >=3.0.0 and <3.2.0
Fixed in
2.36.1, 3.2.0
Severity
high  CVSS 7.8
Exploitation
not on CISA KEV · EPSS 0% (8.9th percentile)
Published
2026-06-19
Source
osv.dev

References

CWE-22
NVD recordsymfony/ux-toolkit 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