CVE-2026-43735

HighCVSS 8.1/10Last modified Aug 17, 2026

Description

The 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 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious website may exfiltrate data cross-origin.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-352

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-2026-437365.5An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7.2. An appCVE-2026-437375.5An authorization issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS CVE-2026-437385.5The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 27 and iPadOS 27, macOS GoCVE-2026-437395.5An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6,CVE-2026-43749.1Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Recording Service,Routing Service,Queueing CVE-2026-437406.5The 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, macOS Tahoe 26.5.CVE-2026-437415.5A logic issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.CVE-2026-437426.5A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, CVE-2026-437434.7A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, iOS 26.7 and iPadOS 26.7, CVE-2026-437445.5An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 anCVE-2026-437456.5An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7CVE-2026-437466.5A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10,
CVE-2026-43735: High severity, CVSS 8.1 | Vulnix