CVE-2026-32020 — openclaw
Fix: openclaw/openclaw@7c500ffCVE-2026-32020 is a CWE-59 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.
OpenClaw < 2026.2.22 - Arbitrary File Read via Symlink Following in Static File Handler
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-32020.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
openclawnpmDescription
Summary
The Control UI static file handler previously validated asset paths lexically and then served files with APIs that follow symbolic links. A symlink placed under the Control UI root could cause out-of-root file reads.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published version observed:
2026.2.21-2 - Affected versions:
<=2026.2.21-2 - Planned fixed release version:
2026.2.22
Technical Details
The vulnerable flow was in src/gateway/control-ui.ts, where path.join(...) + string-prefix checks were followed by file reads that resolved symlinks. This allowed directory-confinement bypasses when symlinks existed inside the Control UI root.
The fix now enforces realpath containment and verifies file identity before serving Control UI assets and SPA fallback index.html.
Impact
- Vulnerability type: path traversal / external file exposure via symlink following.
- Primary impact: confidentiality (out-of-root file read).
- Severity guidance: low in supported trusted-operator deployments; can be higher in unsupported shared-writable setups.
Fix Commit(s)
7c500ff6236fa087ec1ec88696ca9f6881e90dc5
Release Process Note
patched_versions is pre-set to the planned next release (2026.2.22). After npm release is available, publish the advisory.
OpenClaw thanks @tdjackey for reporting.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | openclaw | all versions | 2026.2.22npm install openclaw@2026.2.22 |
Affected Products
openclawopenclawDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update openclaw to 2026.2.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-32020 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
Frequently Asked Questions
Is CVE-2026-32020 in your dependencies?
Find it across npm, including transitive dependencies.