XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream, if using the version out of the box with Java runtime version 14 to 8 or with JavaFX installed. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
2021-08-23T18:15:13.043
2025-05-23T16:50:17.600
Analyzed
CVSSv3.1: 8.5 (HIGH)
AV:N/AC:M/Au:S/C:P/I:P/A:P
6.8
6.4