CVE-2021-30897: Apple iPadOS

Medium severity, CVSS 6.5. EPSS: 1.7% chance of exploitation in the next 30 days.

An issue existed in the specification for the resource timing API. The specification was updated and the updated specification was implemented. This issue is fixed in macOS Monterey 12.0.1. A malicious website may exfiltrate data cross-origin.

Affected products

• Apple iPadOS: before 15.0 (fixed in 15.0)
• Apple iPhone OS: before 15.0 (fixed in 15.0)
• Apple macOS: before 12.0.1 (fixed in 12.0.1)
• Apple tvOS: before 15.0 (fixed in 15.0)

Published 2021-08-24. Last modified 2026-06-17.