Improper input validation in macOS - CVE-2026-20692
Published: March 25, 2026
Vulnerability identifier: #VU124392
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20692
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to inject arbitrary content.
The vulnerability exists due to improper input validation in Mail when processing email content. A local user can submit specially crafted input to inject arbitrary content.
Affected software
macOS
iPadOS
Apple iOS
iPadOS
Apple iOS
How to mitigate CVE-2026-20692
Install update from vendor's website.
macOS - addressed in versions 26.4 25E246, 14.8.5 23J423, 15.7.5 24G624
iPadOS - update to 26.4 23E246
Apple iOS - update to 26.4 23E246
iPadOS - update to 26.4 23E246
Apple iOS - update to 26.4 23E246