4.3
/ 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C
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 userβs device, including triggering OS-controlled custom URL scheme handlers. We have not seen evidence of exploitation in the wild.
Basic Information
ID
CVE-2026-23866
Source
Meta
Published
May 1, 2026 at 16:02
Modified
May 1, 2026 at 17:42
Affected Product
Vendor
Facebook
Product
WhatsApp for Android
Version
2.25.8.0
Affected Versions
Facebook WhatsApp for Android 2.25.8.0
Facebook WhatsApp for iOS 2.25.8.0
Facebook WhatsApp for iOS 2.25.8.0