CVE-2026-43708 Apple CVE debrief

Who should care

Users of affected Apple products, including Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, should update to the latest versions to mitigate the issue. This includes administrators and users of these products in various environments, such as enterprise, education, and personal use.

Technical summary

The CVE-2026-43708 issue was addressed with improved input validation in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, and watchOS 26.6. A malicious website may exfiltrate data cross-origin due to this vulnerability. This issue affects multiple Apple products. The vulnerability is related to input validation and can be exploited by a malicious website, potentially leading to data exfiltration. Users of affected Apple products should update to the latest versions to mitigate the issue. The CVSS score of 4.3 indicates a Medium severity vulnerability.

Defensive priority

Medium priority due to the CVSS score of 4.3 and the potential for data exfiltration. Defenders should prioritize updating affected products and monitoring for potential exploitation attempts.

Recommended defensive actions

• Update Safari to version 26.5.2 or later
• Update iOS to version 26.5.2 or later
• Update iPadOS to version 26.5.2 or later
• Update macOS to version 26.5.2 or later
• Update tvOS to version 26.6 or later
• Update visionOS to version 26.6 or later
• Update watchOS to version 26.6 or later

Evidence notes

The CVE record was published on 2026-06-29T20:17:35.783Z and was last modified on 2026-07-27T21:16:54.707Z. The NVD entry is currently Modified. This issue affects multiple Apple products, including Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Users should verify their product versions and update to the latest versions if necessary.

Official resources