Theia
Vendor:
First CVE: Mar 10, 2020 · Active for 6 years
11
Total CVEs
More Total CVEs than 89% of tracked products
3.7
Avg CVEs / Year
Higher CVE frequency than 83% of tracked products
8.0
Avg CVSS
Higher Avg CVSS than 68% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Theia over time
Volume of CVEsAvg CVSS Base Score
First CVE
Mar 10, 2020
6 years ago
Most Recent CVE
Jun 18, 2026
36 days ago
CVE Severity & Scoring
Theia11 CVEs
36%
45%
18%
All CVEs352,294 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local0 (0.0%)
Network11 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low11 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None1 (9.1%)
Unknown0 (0.0%)
Required10 (90.9%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None11 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (11 CVEs).
11 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-44691HIGH In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g. .theia/tasks.json, .vscode/tasks.json) could be executed without requiring workspace tru | Jun 18, 2026 | 8.8 | 31 | NO | NO |
CVE-2026-46580HIGH In Eclipse Theia versions prior to 1.71.0, files matching the pattern .prompts/*.prompttemplate in a workspace were automatically loaded and could override or extend the AI agent's | Jun 18, 2026 | 8.8 | 31 | NO | NO |
CVE-2026-44688HIGH In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and directory names as part of its prompt context without distinguishing them from system inst | Jun 18, 2026 | 8.8 | 31 | NO | NO |
CVE-2021-34436CRITICAL 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 (rec | Sep 2, 2021 | 9.8 | 30 | NO | NO |
CVE-2020-27224CRITICAL In Eclipse Theia versions up to and including 1.2.0, the Markdown Preview (@theia/preview), can be exploited to execute arbitrary code. | Feb 24, 2021 | 9.6 | 30 | NO | NO |
CVE-2021-34435HIGH 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 prev | Sep 1, 2021 | 8.8 | 27 | NO | NO |
CVE-2019-17636HIGH In Eclipse Theia versions 0.3.9 through 0.15.0, one of the default pre-packaged Theia extensions is "Mini-Browser", published as "@theia/mini-browser" on npmjs.com. This extension, | Mar 10, 2020 | 8.1 | 25 | NO | NO |
CVE-2026-22551MEDIUM In Eclipse Theia versions prior to 1.71.0, the AI chat rendered Markdown image tags from AI responses, triggering HTTP requests to arbitrary external URLs without restriction. Comb | Jun 18, 2026 | 6.5 | 24 | NO | NO |
CVE-2021-41038MEDIUM In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage(). | Nov 10, 2021 | 6.1 | 21 | NO | NO |
CVE-2021-28162MEDIUM In Eclipse Theia versions up to and including 0.16.0, in the notification messages there is no HTML escaping, so Javascript code can run. | Mar 12, 2021 | 6.1 | 21 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (11 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (11 CVEs).
Media Mentions
Signals from CVEs in this product scope (11 CVEs).
Top CNAs Publishing CVEs For Theia
Top CWEs
Versions
No cataloged versions.