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CVE-2026-23866

4.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

In the news 1

Change history 1

  1. First seenCVSS 4.3 · whatsappNVD modified 2026-10-26 21:10

Affected (CPE criteria) 2

  • cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:*
  • cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*

References 2