XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39146
8.5HIGH
What is CVE-2021-39146?
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. 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.
Affected Version(s)
xstream < 1.4.18
References
EPSS Score
44% chance of being exploited in the next 30 days.
CVSS V3.1
Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed
Timeline
Vulnerability published
Vulnerability Reserved