Improper input validation in macOS - CVE-2026-28956
Published: May 12, 2026
Vulnerability identifier: #VU131018
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-28956
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Apple Inc.
Affected software:
macOS
macOS
Detailed vulnerability description
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to insufficient input validation in AppleJPEG. A local application can trick the victim into opening a specially crafted file and perform unexpected app termination or corrupt process memory.
How to mitigate CVE-2026-28956
Install update from vendor's website.