A Server-Side Forgery Request vulnerability in XStream via PriorityQueue unmarshaling
CVE-2021-39150

8.5HIGH

Key Information:

Vendor

X-stream

Status
Vendor
CVE Published:
23 August 2021

What is CVE-2021-39150?

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream with a Java runtime version 14 to 8. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.18.

Affected Version(s)

xstream < 1.4.18

References

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

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CVE-2021-39150 : A Server-Side Forgery Request vulnerability in XStream via PriorityQueue unmarshaling