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CVE-2026-28475

Estado: AnalizadaMedia (6.3)—

OpenClaw versions prior to 2026.2.13 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple requests to gradually recover the authentication token.

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-2026-28475",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-28475",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-03-09T18:09:17.022374Z"
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          "integrityImpact": "LOW",
          "userInteraction": "NONE",
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    "cvssMetricV40": [
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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",
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          "exploitMaturity": "NOT_DEFINED",
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          "subIntegrityImpact": "NONE",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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      "affectedData": [
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          "vendor": "OpenClaw",
          "product": "OpenClaw",
          "versions": [
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              "version": "0",
              "lessThan": "2026.2.13",
              "versionType": "custom"
            }
          ],
          "packageURL": "pkg:npm/openclaw",
          "defaultStatus": "unaffected"
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  "published": "2026-03-05T22:16:21.617",
  "references": [
    {
      "url": "https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f7482593254506ec",
      "tags": [
        "Patch"
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      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-47q7-97xp-m272",
      "tags": [
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    },
    {
      "url": "https://www.vulncheck.com/advisories/openclaw-timing-attack-via-hook-token-comparison",
      "tags": [
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      "source": "disclosure@vulncheck.com"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "value": "CWE-208"
        }
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      "lang": "en",
      "value": "OpenClaw versions prior to 2026.2.13 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple requests to gradually recover the authentication token."
    },
    {
      "lang": "es",
      "value": "Las versiones de OpenClaw anteriores a 2026.2.13 utilizan comparación de cadenas de tiempo no constante para la validación de tokens de gancho, permitiendo a los atacantes inferir tokens a través de mediciones de tiempo. Atacantes remotos con acceso de red al punto final de hooks pueden explotar canales laterales de tiempo a través de múltiples solicitudes para recuperar gradualmente el token de autenticación."
    }
  ],
  "lastModified": "2026-06-17T10:28:42.903",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "2026.2.13"
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}