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    CVE-2021-34436

    In Eclipse Theia 0.1.1 to 0.2.0, it is possible to exploit the default build to obtain remote code execution (and XXE) via the theia-xml-extension. This extension uses lsp4xml (recently renamed to LemMinX) in order to provide language support for XML. This is installed by default.

    Published:Sep 2, 2021
    Last Modified:Nov 21, 2024
    EPS:Sep 2, 2021
    EPSS Score:0.035
    CVSS Score:9.8

    Affected Products

    Vendor
    Eclipse
    Product
    Theia

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-44691 (CVSS 8.4) — In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g. .theia/tasks.json,…
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    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