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CVE-2026-101049

Estado: AplazadaAlta (8.3)—

Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Heym falla en verificar firmas de solicitudes Slack (CWE-287), permitiendo a atacantes remotos no autenticados falsificar eventos y ejecutar flujos con credenciales del propietario. Explotación de aplicación web expuesta con impacto en acceso de cuenta.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Heym — HeymAI

CWE

Referencias

JSON original (NVD)

Mostrar
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          "id": "CVE-2026-101049",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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              "automatable": "no"
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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      "url": "https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83",
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    {
      "url": "https://www.vulncheck.com/advisories/heym-before-0.0.53-slack-webhook-signature-verification-bypass",
      "source": "disclosure@vulncheck.com"
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      "lang": "en",
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    }
  ],
  "lastModified": "2026-09-28T21:02:16.150",
  "sourceIdentifier": "disclosure@vulncheck.com"
}