Security Advisory

CVE-2026-23866

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-01 16:02:03

Last updated 2026-05-01 17:42:09

Assigner Meta

CVSS score 4.3

State PUBLISHED

Description

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.

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