CVE-2015-1091: Apple iPhone OS

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

The CFNetwork Session component in Apple iOS before 8.3 and Apple OS X before 10.10.3 does not properly handle request headers during processing of redirects in HTTP responses, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

Affected products

• Apple iPhone OS: up to and including 8.2
• Apple Mac OS X: up to and including 10.10.2

Published 2015-04-10. Last modified 2026-06-17.