cvedb.io
CVE-2021-34436
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2021-09-02T21:15:07.977 · Last modified 2026-06-17T03:55:51.837

Summary

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.

Affected products

eclipse — theia

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.