CVE-2026-65399

CVE-2026-65399 is a file quarantine bypass in Apple's Gatekeeper security mechanism, addressed with additional checks. The vulnerability allows an archive to potentially bypass Gatekeeper's quarantine enforcement. It affects macOS Sequoia 15.8, macOS Tahoe 26.7, macOS Golden Gate 27, iOS 26.7, iP...

New Mac Malware Exploits GateKeeper Bypass Bug that Apple Left Unpatched

Cybersecurity researchers from Intego are warning about possible active exploitation of an unpatched security vulnerability in Apple's macOS Gatekeeper security feature details and PoC for which were publicly disclosed late last month. Intego team last week discovered four samples of new macOS...

Stealthy, Persistent DLL Hijacking Works Against OS X

DLL hijacking has plagued Windows machines back as far as 2000 and provides hackers with a quiet way to gain persistence on a vulnerable machine, or remotely exploit a vulnerable application. And now it’s come to Apple’s Mac OS X. This week at the CanSecWest conference in Vancouver, Synack direct...