OpenClaw vulnerable to path traversal in Feishu media temp-file naming allows writes outside os.tmpdir()
Summary
OpenClaw’s Feishu media download flow used untrusted Feishu media keys (imageKey / fileKey) when building temporary file paths in extensions/feishu/src/media.ts.
Because those keys were interpolated directly into temp-file paths, traversal segments could escape the temp directory and redirect writes outside os.tmpdir().
Impact
This is an arbitrary file write issue (within the OpenClaw process file permissions). If an attacker can control Feishu media key values returned to the client (for example via compromised upstream response path), they can influence where downloaded bytes are written.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version at triage:
2026.2.17 - Affected versions:
<= 2026.2.17 - Fixed version:
2026.2.19
Fix Commit(s)
c821099157a9767d4df208c6b12f214946507871cdb00fe2428000e7a08f9b7848784a0049176705ec232a9e2dff60f0e3d7e827a7c868db5254473f
Remediation
The fix removes key-derived temp-file naming and keeps downloads in safe temp locations. Additional hardening isolates SDK writeFile calls in per-download temp directories (mkdtemp) with deterministic cleanup, enforces Feishu key trust-boundary validation, and adds a repository guard test against dynamic path.join(os.tmpdir(), \...${...}`)` patterns in runtime code.
OpenClaw thanks @allsmog for reporting.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.2.19 | 2026.2.19 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-vj3g-5px3-gr46
- https://nvd.nist.gov/vuln/detail/CVE-2026-22171
- https://github.com/openclaw/openclaw/commit/c821099157a9767d4df208c6b12f214946507871
- https://github.com/openclaw/openclaw/commit/cdb00fe2428000e7a08f9b7848784a0049176705
- https://github.com/openclaw/openclaw/commit/ec232a9e2dff60f0e3d7e827a7c868db5254473f
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-path-traversal-in-feishu-media-temporary-file-naming
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-22- Platform
- npm
- Package
openclaw- Disclosed
- 03.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vj3g-5px3-gr46 - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw vulnerable to path traversal in Feishu media temp-file naming allows writes outside os.tmpdir() this entry
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