Unrated severityNVD Advisory· Published Jul 27, 2026· Updated Jul 28, 2026

CVE-2026-43793

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

Apple Inc./macOS Sequoiallm-fuzzy
Range: = 15.7.8
Apple Inc./macOS Sonomallm-fuzzy
Range: = 14.8.8
Apple Inc./macOS Tahoellm-fuzzy
Range: = 26.6

Patches

Vulnerability mechanics

References

support.apple.com/en-us/128067mitre
support.apple.com/en-us/128071mitre
support.apple.com/en-us/128072mitre

News mentions

Apple Patches Everything (July 2026), (Wed, Jul 29th)
SANS Internet Storm Center · Jul 29, 2026

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000