PoC Index

CVE-2021-39150

HIGH 8.5EPSS 3.4%

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](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.18.

CVSS v3.1
8.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v3.1
8.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v3.1
8.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v2.0
6.0 MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P
EPSS
3.44% chance of exploitation in the next 30 days, 88th percentile
Published
2021-08-23
Updated
2024-08-04

Proof-of-concept exploits (1)

References

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