External Control of File Name or Path Affecting @composio/core package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-COMPOSIOCORE-17905545
- published9 Jul 2026
- disclosed8 Jul 2026
- creditGeorge Chen
Introduced: 8 Jul 2026
NewCVE-2026-59807 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to External Control of File Name or Path via the readFileFromDisk function in tool-file-uploads.ts. An attacker can exfiltrate sensitive local files by prompt-injecting tool arguments that point the upload path at credential files such as ~/.ssh/id_rsa, ~/.aws/credentials, or .env. The CLI reads the chosen path and uploads its contents to attacker-controlled storage, exposing secrets and breaking the user’s ability to keep local credentials private.
Notes
- The CLI path is the duplicate local-file upload flow used by
composio execute/composio run; the vulnerable read happens before any presigned-URL request, so the leak occurs even if the upload never completes. - The bypass is broader than a single filename check: the guard had to account for canonicalized paths and symlinks, so a link that resolves into a sensitive location is part of the exposed surface.