XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. 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.
2021-08-23T19:15:10.440
2025-05-23T16:50:34.143
Analyzed
CVSSv3.1: 6.5 (MEDIUM)
AV:N/AC:M/Au:S/C:N/I:N/A:C
6.8
6.9