CVE-2021-34436
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 2.2%
exploitation probability
2.2%top 19% of all CVEs
observed exploitation
nono source reports it
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
The Eclipse Foundation · Eclipse Theia