CVE-2026-27487 is a high-severity (CVSS 7.6) OS Command Injection vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.
OpenClaw: Prevent shell injection in macOS keychain credential write
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- 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-2026-27487.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
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
On macOS, the Claude CLI keychain credential refresh path constructed a shell command to write the updated JSON blob into Keychain via security add-generic-password -w .... Because OAuth tokens are user-controlled data, this created an OS command injection risk.
The fix avoids invoking a shell by using execFileSync("security", argv) and passing the updated keychain payload as a literal argument.
Affected Packages / Versions
- Package:
openclaw(npm) - Platform: macOS only
- Affected versions:
<= 2026.2.13
Fix
- Patched version:
>= 2026.2.14(next release) - Fix PR: #15924
- Fix commits (merged to
main):9dce3d8bf83f13c067bc3c32291643d2f1f10a0666d7178f2d6f9d60abad35797f97f3e61389b70cb908388245764fb3586859f44d1dff5372b19caf
Thanks @aether-ai-agent for reporting.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | openclaw | all versions | 2026.2.14npm install openclaw@2026.2.14 |
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 2026.2.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-27487 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is CVE-2026-27487 in your dependencies?
Find it across npm, including transitive dependencies.