GHSA-qw99-grcx-4pvm — medium GitHub Advisory (CVE-2026-28395) in npm/openclaw

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.

Basic information

Type: reviewed
Severity: medium
Advisory on GitHub: Open advisory ↗
Repository advisory: Open repository advisory ↗
Source code: Browse source ↗
Published (advisory): 2026-02-17 17:09:43 UTC
Updated: 2026-03-06 00:58:29 UTC
GitHub reviewed: 2026-02-17 17:09:43 UTC
NVD published: 2026-03-05

Score	Percentile
0.20%	41.51%

CVSS Scores

Base score	Version	Severity	Vector
6.5	3.1	—	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.
6.3	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` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network. Attack complexity (AC:L) Exploitation conditions are straightforward and stable. Attack requirements (AT:P) Additional preconditions must be present for exploitation. Privileges required (PR:N) No privileges are required. User interaction (UI:N) No user interaction is required. Vulnerable system confidentiality impact (VC:L) Limited confidentiality impact on the vulnerable system. Vulnerable system integrity impact (VI:N) No integrity impact on the vulnerable system. Vulnerable system availability impact (VA:L) Limited availability impact on the vulnerable system. Subsequent system confidentiality impact (SC:N) No confidentiality impact on subsequent systems. Subsequent system integrity impact (SI:N) No integrity impact on subsequent systems. Subsequent system availability impact (SA:N) No availability impact on subsequent systems.

Identifiers

Type	Value
GHSA	GHSA-qw99-grcx-4pvm ↗
CVE	CVE-2026-28395 ↗

CWEs

CWE id	Name
CWE-284	Improper Access Control
CWE-1327	Binding to an Unrestricted IP Address

Credits

qi-scape (reporter)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
npm	openclaw	>= 2026.1.14-1, < 2026.2.12	2026.2.12	—

OpenClaw's Chrome extension relay binds publicly due to wildcard treated as loopback