CVE-2026-43700

MediumCVSS 6.5/10Last modified Aug 17, 2026

Description

A cross-origin issue was addressed with improved tracking of security origins. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may disclose sensitive user information.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-346

Affected software

VendorProductVersions
AppleSafari< 26.5.2
AppleiOS and iPadOS< 18.7.10; < 26.5.2
ApplemacOS< 26.5.2
AppletvOS< 26.6
ApplevisionOS< 26.6
ApplewatchOS< 26.6

References

Timeline

Published
Jun 29, 2026
Last modified
Aug 17, 2026
NVD status
Modified

Related CVEs from 2026

CVE-2026-437017.1The issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26CVE-2026-437027.8The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, macOS SequCVE-2026-437036.5The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS SonoCVE-2026-437045.3A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, maCVE-2026-437058.8A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 CVE-2026-437066.5A double free issue was addressed with improved memory management. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8CVE-2026-437076.5A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, mCVE-2026-437084.3The issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 andCVE-2026-437096.5A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, maCVE-2026-43717.4A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail CVE-2026-437109.8The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. ACVE-2026-437117.8A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and i
CVE-2026-43700: Medium severity, CVSS 6.5 | Vulnix