OpenClaw 2026.1.20 < 2026.2.1 - Missing Authentication in Browser Relay /cdp WebSocket Endpoint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenClaw | OpenClaw | 2026.1.20 to before 2026.2.1 | 2026.2.1 | Patch available | CNA |
| — | openclaw (npm) | 2026.1.20 to before 2026.2.1 | 2026.2.1 | Patch available | GHSA-mr32-vwc2-5j6h |
| — | moltbot (npm) | up to 0.1.0 | — | No fix listed | GHSA-mr32-vwc2-5j6h |
- OpenClaw VendorOpenClaw Affected 2026.1.20 to before 2026.2.1 Fixed in 2026.2.1 Patch available CNA
- openclaw (npm) Vendor— Affected 2026.1.20 to before 2026.2.1 Fixed in 2026.2.1 Patch available GHSA-mr32-vwc2-5j6h
- moltbot (npm) Vendor— Affected up to 0.1.0 Fixed in — No fix listed GHSA-mr32-vwc2-5j6h
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.2.1
- Fix · GHSA-mr32-vwc2-5j6h openclaw (npm) Fixed in 2026.2.1 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.2.1
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-22716 OpenClaw < 2026.2.1 - Inbound Allowlist Policy Bypass in voice-call Extension via Empty Caller ID and Suffix MatchingPriority MEDIUM 49
- TI-2026-22718 OpenClaw 2026.1.29 < 2026.2.1 - Authorization Bypass in Twitch Plugin allowFrom Access ControlPriority LOW 35
- TI-2026-22717 OpenClaw 2026.1.29-beta.1 < 2026.2.1 - Path Traversal in Plugin Installation via Package NamePriority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28458
- 2026-10-03 Alias added: GHSA-mr32-vwc2-5j6h
References
More Openclaw vulnerabilities
- TI-2026-25309 OpenClaw < 2026.3.28 Media Parsing Path Traversal to Arbitrary File Read CVSS 4.0HIGH 8.7
- TI-2026-20394 Exposure of resource to wrong sphere in OpenClaw CVSS 3.1HIGH 8.8
- TI-2026-27742 OpenClaw < 2026.3.24 - Arbitrary Code Execution via .npmrc in Local Plugin/Hook Installation CVSS 4.0HIGH 8.4
- TI-2026-27766 OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing CVSS 4.0MEDIUM 6.9
- TI-2026-07315 OpenClaw bluebubbles Webhook monitor.ts handleBlueBubblesWebhookRequest improper authentication CVSS 4.0MEDIUM 6.9
- TI-2026-17789 OpenClaw < 2026.2.22 - Allowlist Bypass via Command Substitution in system.run CVSS 4.0HIGH 7.5
Sources
- CVE-2026-28458 · CVE Program
- CVE-2026-28458 · NVD
- FIRST EPSS
- GHSA-mr32-vwc2-5j6h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences