Critical · 9.8 CVE-2026-43793 EUVD-2026-49557GHSA-wq9g-gwgp-vjq3

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in macOS …

Published Jul 27, 2026 · Updated Jul 28, 2026 · Assigned by apple

Vendor: Apple Product: macOS Platform: macOS

Description

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

Affected products

Vendor	Product	Affected	Fixed
Apple	macOS	< 14.8.8, < 15.7.8, < 26.6	14.8.8

Advisories 2

WID-SEC-2026-2543 Apple macOS (Tahoe, Sonoma und Sequoia): Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 14, 2026
NCSC-2026-0267 Kwetsbaarheden verholpen in Apple MacOS NCSC-NL (Netherlands) · Jul 28, 2026

References

https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128071
https://support.apple.com/en-us/128072

EUVD	v3.1	9.8
CISA-ADP	v3.1	9.8