OpenClaw's Chrome extension relay binds publicly due to wildcard treated as loopback
Summary
The Chrome extension relay (ensureChromeExtensionRelayServer) previously treated wildcard hosts (0.0.0.0 / ::) as loopback, which could make it bind the relay HTTP/WS server to all interfaces when a wildcard cdpUrl was passed.
Impact
If configured with a wildcard cdpUrl, relay HTTP endpoints could become reachable off-host, leaking service presence/port and enabling DoS/brute-force traffic against the relay token header.
Affected Packages / Versions
- Package:
openclaw(npm) - Affected:
>= 2026.1.14-1 < 2026.2.12
Fixed Versions
- Patched:
>= 2026.2.12(released 2026-02-13)
Fix Commit(s)
- 8d75a496bf5aaab1755c56cf48502d967c75a1d0
Notes
- Earlier hardening for
/json*auth and/cdptoken checks landed in:- a1e89afcc19efd641c02b24d66d689f181ae2b5c
Thanks @qi-scape for reporting.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | >= 2026.1.14-1, < 2026.2.12 | 2026.2.12 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-qw99-grcx-4pvm
- https://nvd.nist.gov/vuln/detail/CVE-2026-28395
- https://github.com/openclaw/openclaw/commit/8d75a496bf5aaab1755c56cf48502d967c75a1d0
- https://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5c
- https://github.com/openclaw/openclaw
- https://github.com/openclaw/openclaw/releases/tag/v2026.2.12
- https://www.vulncheck.com/advisories/openclaw-unintended-public-binding-of-chrome-extension-relay-via-wildcard-cdpurl
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L- Weakness (CWE)
CWE-1327, CWE-284- Platform
- npm
- Package
openclaw- Disclosed
- 17.02.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-qw99-grcx-4pvm - 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's Chrome extension relay binds publicly due to wildcard treated as loopback this entry
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