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CVE-2026-105396

Estado: AplazadaMedia (5.3)—

Heym before v0.0.112 contains a token leakage vulnerability in build_public_base_url() that allows unauthenticated attackers to redirect HITL review links by spoofing Origin or X-Forwarded-Host headers. Attackers can trigger anonymous workflows with forged headers so reviewer notifications point to attacker domains, capturing capability tokens to submit decisions executed with owner 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.

XSS-like redirect via header spoofing (Origin/X-Forwarded-Host) que engaña al usuario a visitar dominio atacante (T1189). Captura tokens en notificaciones phishing (T1598.003) para ejecutar acciones con credenciales del propietario (T1187 - Man-in-the-Middle contextual).

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 TrainingRestrict Web-Based ContentPassword PoliciesFilter Network TrafficApplication Isolation and SandboxingExploit Protection

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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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  "published": "2026-10-05T12:17:09.583",
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  "lastModified": "2026-10-05T16:00:27.123",
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