CVE-2021-34435
First published: Wed Sep 01 2021(Updated: )
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file..
Credit: emo@eclipse.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Eclipse Theia | >=0.3.9<=1.8.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-34435?
CVE-2021-34435 is a vulnerability in Eclipse Theia 0.3.9 to 1.8.1 that allows a previewed malicious HTML file to trigger remote code execution (RCE).
How does the mini-browser extension in Eclipse Theia work?
The mini-browser extension in Eclipse Theia allows users to preview HTML files in an iframe inside the IDE.
Is CVE-2021-34435 only exploitable if a user previews a malicious file?
Yes, the exploit in CVE-2021-34435 only occurs if a user previews a malicious HTML file.
What is the severity of CVE-2021-34435?
CVE-2021-34435 has a severity rating of 8.8 (high).
How can I fix CVE-2021-34435?
To fix CVE-2021-34435, it is recommended to update Eclipse Theia to a version higher than 1.8.1.
- collector/nvd-index
- agent/weakness
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/severity
- agent/references
- agent/author
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
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- vendor/eclipse
- canonical/eclipse theia
- version/eclipse theia/0.3.9
- version/eclipse theia/1.8.1