What is CVE-2026-43691?

CVE-2026-43691 is a high-severity vulnerability in Apple macOS, classified under Path Traversal. CVSS score: 7.8/10. Published 2026-09-14.

How severe is CVE-2026-43691?

High severity. CVSS v3 base score is 7.8 out of 10.

Path Traversal in Apple macOS

CVE-2026-43691

A path handling issue was addressed with improved validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain root privileges.

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Macos

Weakness classification (CWE)

CWE-22 — Path Traversal

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-43691?: CVE-2026-43691 is a high-severity vulnerability in Apple macOS, classified under Path Traversal. CVSS score: 7.8/10. Published 2026-09-14.
How severe is CVE-2026-43691?: High severity. CVSS v3 base score is 7.8 out of 10.