CVE-2021-34436
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductEclipse Theia
PublishedSep 2, 2021
First seenSep 2, 2021
Weakness typeCWE-611XML external entity (XXE)CWE-22Path traversal
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| eclipse theia | 0.1.1 ≤ v ≤ 0.2.0 | — |
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