Information disclosure in macOS - CVE-2026-43787
Published: September 15, 2026
Vulnerability identifier: #VU149855
CSH Severity: Medium
CVSS v4: 4.8 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-43787
CWE-ID: CWE-200
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a logic issue in Mail. A remote attacker with access to the local network can send a specially crafted email to the victim and obtain sensitive user information.
Affected software
macOS
How to mitigate CVE-2026-43787
Install updates from vendor's website.
macOS - addressed in versions 26.7 25G229, 15.8 24H23