CVE-2021-34436

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Source
https://cve.org/CVERecord?id=CVE-2021-34436
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34436.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-34436
Published
2021-09-02T21:15:07.977Z
Modified
2026-03-14T08:43:23.357194Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/eclipse-theia/theia

Affected ranges

Type
GIT
Repo
https://github.com/eclipse-theia/theia
Events
Introduced
515e23db9dc9fb856bffae313a09d3fbae336328
Last affected
d0bde3f6e1810069dff7f04e32401420fa7665fe
Database specific 
{
    "versions": [
        {
            "introduced": "0.1.1"
        },
        {
            "last_affected": "0.2.0"
        }
    ]
}

Affected versions

v0.*
v0.1.1
v0.2.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34436.json"