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typo3/cms-core: VariableFrontend and Registry now prevent PHP Object Injection

VariableFrontend and Registry now deserialize PHP payloads with integrity validation and class restrictions, preventing PHP Object Injection.

13 Jun 2026Read 1 minSeverity: schedule it

What changed

VariableFrontend and Registry now deserialize PHP payloads with integrity validation and class restrictions, preventing PHP Object Injection.

Who it affects

Users of TYPO3 versions before 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS.

What to do today

Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, or 14.3.3 LTS.

The trail
Collected Audited Written Published