Deserialization of Untrusted Data

Overview typo3/cms-core is a free open source enterprise content management system. Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the VariableFrontend or Registry. An attacker can execute arbitrary PHP code by injecting a crafted serialized payload into...

CVE-2026-49740

TYPO3's cache frontend VariableFrontend and persistent key-value store Registry deserialized PHP payloads without integrity validation or class restrictions. An attacker with write access to the underlying storage backend cache store or sysregistry database table could inject a crafted serialized...