GHSA-8j2w-6fmm-m587 — openclaw
MEDIUMGHSA-8j2w-6fmm-m587 is a medium-severity (CVSS 4.8) CWE-288 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.
OpenClaw: /api/channels gateway-auth boundary bypass via path canonicalization mismatch
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 GHSA-8j2w-6fmm-m587.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-8j2w-6fmm-m587 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
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
Gateway auth for plugin channel endpoints can be bypassed when path canonicalization differs between the gateway guard and plugin handler routing.
Details
On affected versions, server-http only applies gateway auth when raw requestPath matches exactly:
/api/channels/api/channels/*
If a plugin handler canonicalizes path input (for example decodeURIComponent(pathname).toLowerCase()), requests like:
/API/channels/nostr/default/profile/api/channels%2Fnostr%2Fdefault%2Fprofilecan be interpreted as/api/channels/*by the plugin, while the gateway auth guard is skipped.
Impact
Authentication boundary bypass for plugin channel HTTP routes under canonicalization mismatch conditions. Unauthorized callers may access plugin channel APIs that are expected to require gateway auth.
CWE: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)
CVSS: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N (Base 5.3, Moderate)
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | openclaw | all versions | 2026.2.26npm install openclaw@2026.2.26 |
Detection & 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 2026.2.26 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8j2w-6fmm-m587 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-8j2w-6fmm-m587 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-8j2w-6fmm-m587. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-8j2w-6fmm-m587 in your dependencies?
O3 Security finds GHSA-8j2w-6fmm-m587 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.