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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-28395

29
FAUCET Score

CVE-2026-28395 describes an improper network binding vulnerability in the Chrome extension relay server of OpenClaw versions prior to 2026.2.12. When a wildcard cdpUrl is configured, the relay server treats wildcard hosts as loopback addresses, causing it to bind to all network interfaces. This allows remote attackers to access relay HTTP endpoints off-host, potentially leaking service presence and port information, or enabling denial-of-service and brute-force attacks against the relay token header. The vulnerability has a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity and potential for low impact on confidentiality and availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2026.1.14-1, < 2026.2.12CPE match
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

6.3MEDIUM

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 9th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: openclawFixed in: 2026.2.12

Vendor Advisories (1)

npmGHSA-qw99-grcx-4pvmmedium

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

Feb 17, 2026

References

github.com / openclaw/openclaw/commit/8d75a496bf5aaab1755c56cf48502d967c75a1d0
Patch
github.com / openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5c
Patch
github.com / openclaw/openclaw/security/advisories/GHSA-qw99-grcx-4pvm
Vendor Advisory
vulncheck.com / advisories/openclaw-unintended-public-binding-of-chrome-extension-relay-via-wildcard-cdpurl
Broken Link