GHSA-h7v4-7xg3-hxcc

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    GHSA-h7v4-7xg3-hxcc

    Published: 25 Aug 2021Last Modified: 8 Jul 2026

    Summary: XStream is vulnerable to an Arbitrary Code Execution attack

    Details: ### Impact The 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. ### Patches XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. ### Workarounds See [workarounds](https://x-stream.github.io/security.html#workaround) for the different versions covering all CVEs. ### References See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for [CVE-2021-39147](https://x-stream.github.io/CVE-2021-39147.html). ### Credits wh1t3p1g from TSRC (Tencent Security Response Center) found and reported the issue to XStream and provided the required information to reproduce it. ### For more information If you have any questions or comments about this advisory: * Open an issue in [XStream](https://github.com/x-stream/xstream/issues) * Contact us at [XStream Google Group](https://groups.google.com/group/xstream-user)

    Affected packages

    Package

    Name: com.thoughtworks.xstream:xstream

    Purl: pkg:maven/com.thoughtworks.xstream/xstream

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.18

    Affected versions

    0.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-h7v4-7xg3-hxcc | CVE-DB