CVE-2026-28395
OpenClaw's Chrome extension relay binds publicly due to wildcard treated as loopback
Description
## 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 `/cdp` token checks landed in: - a1e89afcc19efd641c02b24d66d689f181ae2b5c Thanks @qi-scape for reporting.
How to fix CVE-2026-28395
To remediate CVE-2026-28395, upgrade the affected package to a fixed version below.
- —upgrade to 2026.2.12 or later
Is CVE-2026-28395 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2026.1.14-1, < 2026.2.12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |