Improper access control in macOS - CVE-2026-28900

 

Improper access control in macOS - CVE-2026-28900

Published: August 17, 2026


Vulnerability identifier: #VU143798
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-28900
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper access control in libarchive when parsing input. A remote attacker can supply crafted input to disclose sensitive information.


Affected software

macOS

How to mitigate CVE-2026-28900

Install update from vendor's website.

macOS - addressed in versions 15.7.8 24G824, 14.8.8 23J620

External References

Related Security Bulletins