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CVE-2026-100862

Estado: AplazadaMedia (6.9)—

heym, a workflow automation platform, stores and returns multiple capability secrets in plaintext in versions prior to 0.0.91. Affected secrets include webhook header-auth values (returned in cleartext by GET /api/workflows/{id} and persisted unsanitized into execution history), MCP API keys (stored as a plaintext column, returned in config/list responses, and accepted via the ?key= query string so they leak into logs, proxies and Referer headers), portal session tokens (stored and validated by plaintext equality with a 168-hour TTL), workflow execution JWTs (stored in full and re-listed by GET .../execution-tokens), Discord interaction tokens (the full interaction body is stored in execution history), and global variables. A user with read access to a workflow, share/team membership, or anyone able to read the database, a backup, or logs can recover these secrets and replay them to execute workflows or act as the secret owner.

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.

Plataforma de automatización remota (heym) almacena secretos en texto plano accesibles mediante API GET sin sanitización; usuarios con acceso a workflows/DB pueden recuperar y reproducir tokens/API keys para ejecutar flujos como propietario.

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

User TrainingPrivileged Account ManagementPassword PoliciesMulti-factor AuthenticationAccount Use PoliciesActive Directory Configuration

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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          "options": [
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              "technicalImpact": "partial"
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          "version": "2.0.3",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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          "vendor": "heymrun",
          "product": "heym",
          "versions": [
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              "versionType": "semver"
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  "published": "2026-09-27T02:17:25.963",
  "references": [
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      "url": "https://github.com/heymrun/heym/security/advisories/GHSA-6x65-w7q7-wg93",
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    {
      "url": "https://www.vulncheck.com/advisories/heym-before-0.0.91-multiple-secrets-plaintext-storage",
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    }
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
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          "value": "CWE-312"
        }
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    }
  ],
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    {
      "lang": "en",
      "value": "heym, a workflow automation platform, stores and returns multiple capability secrets in plaintext in versions prior to 0.0.91. Affected secrets include webhook header-auth values (returned in cleartext by GET /api/workflows/{id} and persisted unsanitized into execution history), MCP API keys (stored as a plaintext column, returned in config/list responses, and accepted via the ?key= query string so they leak into logs, proxies and Referer headers), portal session tokens (stored and validated by plaintext equality with a 168-hour TTL), workflow execution JWTs (stored in full and re-listed by GET .../execution-tokens), Discord interaction tokens (the full interaction body is stored in execution history), and global variables. A user with read access to a workflow, share/team membership, or anyone able to read the database, a backup, or logs can recover these secrets and replay them to execute workflows or act as the secret owner."
    }
  ],
  "lastModified": "2026-09-30T16:17:03.587",
  "sourceIdentifier": "disclosure@vulncheck.com"
}