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.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 02 May 2026 12:00:00 +0000

Type Values Removed Values Added
Title Unvalidated Media URL Processing Via WhatsApp AI Rich Response Messages

Fri, 01 May 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-940
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 01 May 2026 16:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': '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'}


Fri, 01 May 2026 16:15:00 +0000

Type Values Removed Values Added
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.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Meta

Published:

Updated: 2026-05-01T17:42:09.286Z

Reserved: 2026-01-16T19:49:26.309Z

Link: CVE-2026-23866

cve-icon Vulnrichment

Updated: 2026-05-01T17:42:01.834Z

cve-icon NVD

Status : Received

Published: 2026-05-01T16:16:29.980

Modified: 2026-05-01T18:16:14.190

Link: CVE-2026-23866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-02T11:45:41Z

Weaknesses