CVE detail
CVE-2026-60009
In Eclipse Theia versions up to and including 1.73.1, the `@theia/filesystem` backend binds `POST /file-upload` in every filesystem-enabled deployment. The handler takes an attacker-supplied absolute path from the multipart `uri` field and calls `fs.move(tmp, target, { overwrite: true })` with no workspace confinement and no authentication. In browser (non-Electron) deployments the connection token is enforced only on WebSocket upgrades; the HTTP middleware in `@theia/core` re-issues the cookie and calls `next()` without rejecting tokenless HTTP requests. Because `multipart/form-data` is a CORS-safelisted request type, a cross-origin web page can trigger the write with no preflight and no credentials, resulting in an unauthenticated arbitrary file write outside the workspace to any absolute path the backend process can write. This can escalate to remote code execution, for example by overwriting a startup-executed file such as `~/.bashrc`. Electron mode uses a separate `ElectronSecurityToken` and is not affected via this path.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 4
- within the 30d window
- Peak daily
- 4
- highest bucket
Evidence
Source links by recency
4 source links · newest first
No excerpt available.
Exploitgitlab.eclipse.orgAug 5, 2026, 11:16 AM- https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/595gitlab.eclipse.org
No excerpt available.
Exploitgitlab.eclipse.orgAug 5, 2026, 11:16 AM - https://gitlab.eclipse.org/security/cve-assignment/-/work_items/177gitlab.eclipse.org
No excerpt available.
Exploitgitlab.eclipse.orgAug 5, 2026, 11:16 AM No excerpt available.
Exploitgithub.comAug 5, 2026, 11:16 AM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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