Apple security advisory (AV26-839)
Serial Number: AV26-839 Date: August 21, 2026 As of August 18, 2026, Apple is affected by vulnerabilities in the following products: Safari Prior to 26.6.1 iOS and iPadOS Prior to 18.7.10 Prior to 26.6.1 MacOS Tahoe Prior to 26.6.2 The Cyber Centre encourages users and administrators to review the provided web link and apply any necessary updates as they become available. Apple security releases - Apple Support
CSIRTS triage
- What
- Multiple vulnerabilities exist in Safari, iOS, iPadOS, and macOS Tahoe.
- Who is affected
- Users running Safari prior to 26.6.1, iOS/iPadOS prior to 18.7.10, and macOS Tahoe prior to 26.6.2.
- Urgency
- Moderate: no active exploitation reported; specifics unknown pending review of full advisory.
- Action
- Apply available security updates for Safari, iOS/iPadOS, and macOS Tahoe.
AI-assisted analysis generated from the source advisory — verify against the original.
Details
Original advisory: https://cyber.gc.ca/en/alerts-advisories/apple-security-advisory-av26-839
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