Incomplete validation of AI rich response messages for Instagram Reels in WhatsApp for iOS v2.25.8.0 to v2.26.15.72
Source GCVE Database
Public exploit available · CVSS 4.3 Medium : upgrade to 2.26.7.10 as a priority.
Data as of 27 Oct 2026, 00:45 UTC
- Patch
- Available – fixed in 2.26.7.10, 2.26.15.72
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade WhatsApp to 2.26.7.10 (Android) or 2.26.15.72 (iOS).
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| FacebookWhatsApp for Android | Affected
| Fixed in
|
| FacebookWhatsApp for iOS | Affected
| Fixed in
|
AI-suggested
Since this is a client-side vulnerability affecting specific WhatsApp app versions, users should update WhatsApp to versions later than 2.26.15.72 on iOS and later than 2.26.7.10 on Android once such updates are available. Until then, caution is advised when interacting with Instagram Reels AI rich response messages within WhatsApp. Monitor vendor advisories for official remediation guidance.
Description
A vulnerability in WhatsApp for iOS versions 2.25.8.0 to 2.26.15.72 and WhatsApp for Android versions 2.25.8.0 to 2.26.7.10 allows incomplete validation of AI rich response messages for Instagram Reels. This flaw could enable a user to cause another user's device to process media content from an arbitrary URL, potentially triggering OS-controlled custom URL scheme handlers. There is no evidence of exploitation in the wild.