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CVE-2026-29606

Estado: AnalizadaMedia (6.3)—

OpenClaw versions prior to 2026.2.14 contain a webhook signature-verification bypass in the voice-call extension that allows unauthenticated requests when the tunnel.allowNgrokFreeTierLoopbackBypass option is explicitly enabled. An external attacker can send forged requests to the publicly reachable webhook endpoint without a valid X-Twilio-Signature header, resulting in unauthorized webhook event handling and potential request flooding attacks.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Openclaw — Openclaw

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-29606",
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          "options": [
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              "exploitation": "none"
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              "automatable": "yes"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-03-09T20:38:07.703223Z"
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    "cvssMetricV31": [
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          "integrityImpact": "LOW",
          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/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",
          "exploitMaturity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "affectedData": [
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              "lessThan": "2026.2.14",
              "versionType": "custom"
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          "defaultStatus": "unaffected"
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  "published": "2026-03-05T22:16:23.850",
  "references": [
    {
      "url": "https://github.com/openclaw/openclaw/commit/ff11d8793b90c52f8d84dae3fbb99307da51b5c9",
      "tags": [
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      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-c37p-4qqg-3p76",
      "tags": [
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    },
    {
      "url": "https://www.vulncheck.com/advisories/openclaw-webhook-signature-verification-bypass-via-ngrok-loopback-compatibility",
      "tags": [
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      "source": "disclosure@vulncheck.com",
      "description": [
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          "value": "CWE-306"
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      "lang": "en",
      "value": "OpenClaw versions prior to 2026.2.14 contain a webhook signature-verification bypass in the voice-call extension that allows unauthenticated requests when the tunnel.allowNgrokFreeTierLoopbackBypass option is explicitly enabled. An external attacker can send forged requests to the publicly reachable webhook endpoint without a valid X-Twilio-Signature header, resulting in unauthorized webhook event handling and potential request flooding attacks."
    },
    {
      "lang": "es",
      "value": "Versiones de OpenClaw anteriores a 2026.2.14 contienen un bypass de verificación de firma de webhook en la extensión de llamadas de voz que permite solicitudes no autenticadas cuando la opción tunnel.allowNgrokFreeTierLoopbackBypass está explícitamente habilitada. Un atacante externo puede enviar solicitudes falsificadas al endpoint de webhook accesible públicamente sin un encabezado X-Twilio-Signature válido, lo que resulta en un manejo no autorizado de eventos de webhook y posibles ataques de inundación de solicitudes."
    }
  ],
  "lastModified": "2026-06-17T10:29:48.970",
  "configurations": [
    {
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}