GHSA-mmcv-fvq8-r9x3: Symfony XML decoding attack vector through external entities

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

Symfony XML decoding attack vector through external entities

Package
symfony/symfony Composer
Affected versions
>=2.0.0 and <2.0.11
Fixed in
2.0.11
Severity
critical  CVSS 9.8
Exploitation
not on CISA KEV
Published
2024-05-30
Source
osv.dev

References

CWE-502
NVD recordsymfony/symfony advisories

Am I affected?

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