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CVE-2026-56207

Estado: AnalizadaCrítica (9.8)—

Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2-http interface, allowing altering user name and acting as another user.

This issue affects Apache Impala: >=4.0.0.

Users are recommended to upgrade to version 4.5.2, which fixes this issue.

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.

Fallo de verificación de firma SAML2 en interfaz HTTP expuesta (AV:N, PR:N, UI:N) permite suplantación de usuario remota sin autenticación válida. CWE-347 (verificación de firma fallida) confirma el acceso no autorizado a credenciales/cuentas.

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 ManagementPassword PoliciesMulti-factor AuthenticationVulnerability ScanningUser Account ManagementRestrict File and Directory Permissions

Tecnologías afectadas (1)

Apache — Impala

CWE

Referencias

JSON original (NVD)

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