HOMEVULNERABILITIESCVE-2026-28458
MEDIUM

CVE-2026-28458

CWE-306Published: March 5, 2026· Updated: Mar 9, 2026

5.4
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:13.9th

Official Description

OpenClaw version 2026.1.20 prior to 2026.2.1 contains a vulnerability in the Browser Relay (extension must be installed and enabled) /cdp WebSocket endpoint in which it does not require authentication tokens, allowing websites to connect via loopback and access sensitive data. Attackers can exploit this by connecting to ws://127.0.0.1:18792/cdp to steal session cookies and execute JavaScript in other browser tabs.

NVD Source

Technical Analysis

CVE-2026-28458 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected Vendors & Products

openclaw1 product
openclaw
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5c
ADVISORYhttps://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6h
ADVISORYhttps://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-relay-cdp-websocket-endpoint

All References (3)

→
https://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5cPatch
→
https://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6hVendor Advisory
→
https://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-relay-cdp-websocket-endpointThird Party Advisory

Quick Facts

CVE IDCVE-2026-28458
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-306
CISA KEVNo
EPSS (30d)0.05%
Affected1 vendor
PublishedMar 5, 2026

Related CVEs (CWE-306)

CVE-2026-49257
10.0
CVE-2026-20223
10.0
CVE-2026-34162
10.0
CVE-2026-54309
10.0
CVE-2026-44329
10.0
CVE-2026-46803
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-28458 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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