CVE-2026-23866

MEDIUM

4.3

Descripcion

Incomplete validation of AI rich response messages for Instagram Reels in WhatsApp for iOS v2.25.8.0 to v2.26.15.72 and WhatsApp for Android v2.25.8.0 to v2.26.7.10 could have allowed a user to trigger processing of media content from an arbitrary URL on another user’s device, including triggering OS-controlled custom URL scheme handlers. We have not seen evidence of exploitation in the wild.

Detalles CVE

Puntuacion CVSS v3.14.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado5/1/2026

Ultima modificacion5/4/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-940

Referencias

https://www.facebook.com/security/advisories/cve-2026-23866(cve-assign@fb.com)

https://www.whatsapp.com/security/advisories/2026(cve-assign@fb.com)

Correlaciones IOC

Sin correlaciones registradas

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