Description
Deserialization of Untrusted Data in the Java replace-resolve path in Apache Fory fory-core Java SDK before 1.1.0 on Java/JVM platforms allows a remote attacker to bypass class registration, TypeChecker, and DisallowedList checks and invoke classpath-present readResolve/readExternal hooks via crafted Fory serialized data. Users are recommended to upgrade to version 1.1.0 or later, which fixes this issue.
Problem types
CWE-502 Deserialization of Untrusted Data
Product status
Any version before 1.1.0
Credits
Venkatraman Kumar (r3dw0lfsec), Securin
References
www.openwall.com/lists/oss-security/2026/06/04/4
fory.apache.org/security