FKIE_CVE-2026-28458

Vulnerability from fkie_nvd - Published: 2026-03-05 22:16 - Updated: 2026-03-09 17:28
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
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.
References
disclosure@vulncheck.comhttps://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5cPatch
disclosure@vulncheck.comhttps://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6hVendor Advisory
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-relay-cdp-websocket-endpointThird Party Advisory
Impacted products
Vendor Product Version
openclaw openclaw *
To clipboard 

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              "matchCriteriaId": "FE93E473-756E-4149-9B99-AC15AD878F7D",
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  "descriptions": [
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      "value": "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."
    },
    {
      "lang": "es",
      "value": "La versi\u00f3n 2026.1.20 de OpenClaw anterior a la 2026.2.1 contiene una vulnerabilidad en el endpoint WebSocket /cdp del Browser Relay (la extensi\u00f3n debe estar instalada y habilitada) en el que no requiere tokens de autenticaci\u00f3n, permitiendo que los sitios web se conecten a trav\u00e9s de loopback y accedan a datos sensibles. Los atacantes pueden explotar esto conect\u00e1ndose a ws://127.0.0.1:18792/cdp para robar cookies de sesi\u00f3n y ejecutar JavaScript en otras pesta\u00f1as del navegador."
    }
  ],
  "id": "CVE-2026-28458",
  "lastModified": "2026-03-09T17:28:40.040",
  "metrics": {
    "cvssMetricV31": [
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          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
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          "attackRequirements": "PRESENT",
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          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/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",
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          "vulnerabilityResponseEffort": "NOT_DEFINED"
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  "vulnStatus": "Analyzed",
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          "value": "CWE-306"
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      "source": "disclosure@vulncheck.com",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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