Vulnerability · Published Sep 2, 2021 · Assigned by eclipse
CVE-2021-34436
Critical 9.8
In plain English
A critical-severity XML external entity in Eclipse Theia from The Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.2%top 17.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Eclipse Foundation | Eclipse Theia | 0.1.10.1.20.2.0-next.28bc27350.2.0-next.41406d980.2.0-next.a2958907 |
Weakness: CWE-611, CWE-22
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174 x_refsource_CONFIRM