Input Validation Flaw in Apple iOS and macOS Products
CVE-2026-43813

Currently unrated

Key Information:

Vendor: Apple
Status: iOS And iPad OS; Mac OS; TV OS; Visionos
Vendor: CVE Published:; 27 July 2026

What is CVE-2026-43813?

A vulnerability exists that stems from improper input validation, which has been resolved through enhanced input sanitization. This flaw allowed a maliciously crafted application to potentially bypass code signing enforcement mechanisms in various Apple operating systems. Users are encouraged to update to the latest software versions, including iOS 26.6 and others, to mitigate risks associated with this issue.

Affected Version(s)

iOS and iPadOS 0 < 26.6

macOS 0 < 26.6

tvOS 0 < 26.6

References

https://support.apple.com/en-us/128066

https://support.apple.com/en-us/128067

https://support.apple.com/en-us/128068

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jul 27, 2026
Vulnerability Reserved
May 1, 2026

CVE-2026-43813 Data

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