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Description

Composio SDK before 0.2.32-beta.283 contains a path validation bypass vulnerability that allows attackers to read and exfiltrate sensitive files by exploiting a missing assertSafeFileUploadPath check in the readFileFromDisk function within tool-file-uploads.ts. Attackers can exploit prompt injection to manipulate file_uploadable parameters to reference sensitive paths such as SSH private keys, causing the CLI to upload credential files to attacker-controlled storage.

PUBLISHED Reserved 2026-07-07 | Published 2026-07-08 | Updated 2026-07-09 | Assigner VulnCheck




HIGH: 8.9CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

MEDIUM: 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Problem types

External Control of File Name or Path

Product status

Default status
unaffected

Any version before 0.2.32-beta.283
affected

Credits

George Chen finder

References

github.com/ComposioHQ/composio/issues/3746 exploit

github.com/ComposioHQ/composio/issues/3746 (Researcher Disclosure) technical-description exploit

github.com/...sio/releases/tag/@composio/cli@0.2.32-beta.283 (Release Notes) release-notes

github.com/ComposioHQ/composio/pull/3763 (Fix PR) issue-tracking

github.com/...ommit/fc17c37bf95b7ece5c038cb7e2ab7e3e4a064e3a (Fix Commit) patch

www.vulncheck.com/...ve-file-upload-via-tool-file-uploads-ts third-party-advisory

cve.org (CVE-2026-59807)

nvd.nist.gov (CVE-2026-59807)

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