Every CVE whose affected-product data names Eclipse Theia, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.
CVEs (11)
CVE-2021-34436 — CVSS 9.8 (critical): 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…
CVE-2020-27224 — CVSS 9.6 (critical): In Eclipse Theia versions up to and including 1.2.0, the Markdown Preview (@theia/preview), can be exploited to execute arbitrary code.
CVE-2026-46580 — CVSS 8.8 (high): In Eclipse Theia versions prior to 1.71.0, files matching the pattern .prompts/*.prompttemplate in a workspace were automatically loaded…
CVE-2021-34435 — CVSS 8.8 (high): 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…
CVE-2026-44688 — CVSS 8.8 (high): 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…
CVE-2026-44691 — CVSS 8.8 (high): 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…
CVE-2019-17636 — CVSS 8.1 (high): In Eclipse Theia versions 0.3.9 through 0.15.0, one of the default pre-packaged Theia extensions is "Mini-Browser", published as…
CVE-2026-22551 — CVSS 6.5 (medium): In Eclipse Theia versions prior to 1.71.0, the AI chat rendered Markdown image tags from AI responses, triggering HTTP requests to…
CVE-2021-41038 — CVSS 6.1 (medium): In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage().
CVE-2021-28162 — CVSS 6.1 (medium): 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.
CVE-2021-28161 — CVSS 6.1 (medium): In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be…