PT-2021-20530
CVE-2021-34436
·
Published
2021-09-02
·
Updated
2021-09-14
Description by
CVSS 3.1
9.8
CriticalMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions:
Eclipse Theia versions 0.1.1 through 0.2.0
Description:
The issue allows for remote code execution and XXE via the theia-xml-extension, which uses lsp4xml (recently renamed to LemMinX) for XML language support. This extension is installed by default.
Recommendations:
For Eclipse Theia versions 0.1.1 through 0.2.0, consider disabling the theia-xml-extension as a temporary workaround until a patch is available. Restrict access to the LemMinX component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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