CVE-2026-43663

The 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 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.

• CWE-119
• CWE-416

• https://support.apple.com/en-us/127594Vendor Advisory
• https://support.apple.com/en-us/127595Vendor Advisory
• https://support.apple.com/en-us/127685Vendor Advisory
• https://support.apple.com/en-us/128068
• https://support.apple.com/en-us/128069
• https://support.apple.com/en-us/128070

Published

Jun 29, 2026

Last Modified

Jul 27, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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• CVE-2026-43658The issue was addressed with improved memory handling. This …7.5
• CVE-2026-43659A race condition was addressed with additional validation. T…4.7
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• CVE-2026-43660A validation issue was addressed with improved logic. This i…7.5
• CVE-2026-43661A buffer overflow issue was addressed with improved memory h…7.5
• CVE-2026-43665This issue was addressed with additional entitlement checks.…5.5
• CVE-2026-43666An out-of-bounds write issue was addressed with improved bou…6.2
• CVE-2026-43668A use after free issue was addressed with improved memory ma…7.5
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• CVE-2026-43672An authorization issue was addressed with improved state man…7.1