CVE 4.3 MEDIUM

CVE-2026-23866_CVE-2026-23866

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 user’s 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

CWE Classification

References

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