WhatsApp Security Flaw Enables Malicious URL Execution Through Instagram Reels
ID: 6b436a26-faaf-5b49-adea-2a993bbdbd66
STIX ID: report--6b436a26-faaf-5b49-adea-2a993bbdbd66
Feed Name: GBHackers
WhatsApp patched two significant vulnerabilities: CVE-2026-23866, an Instagram Reels-related message validation flaw on iOS and Android that can force the app to load media from arbitrary URLs and trigger OS custom-scheme handlers, and CVE-2026-23863, a Windows attachment spoofing issue using embedded NUL bytes that can cause hidden executables to run. Meta reports no active exploitation; users and administrators are urged to update mobile apps and Windows clients immediately to mitigate potential malware or unauthorized command execution.
Your team is not currently subscribed to this feed. You must subscribe to it in order to see this post.