DIRAS TAKE
Urgent: patch immediately where possible because public exploit code exists for this flaw. Prioritize upgrading internet-facing or frequently exposed macOS hosts to the fixed releases listed by Apple.
What is CVE-2026-65374?
An attacker can execute arbitrary code on macOS by causing a memory corruption when the system connects to a malicious WebDAV server. CVE-2026-65374 affects macOS Sequoia 15.x before 15.8, Tahoe 26.x before 26.7, and Golden Gate 27.x before 27. An attacker needs network access to host a malicious WebDAV service and a user on the target macOS system to connect or be tricked into connecting (requires user interaction). The weakness is classified as CWE-787 (Out-of-bounds Write).
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Which versions of Apple macOS are affected?
| BRANCH | AFFECTED | FIXED |
|---|---|---|
| 15.x | before 15.8 | 15.8 |
| 26.x | before 26.7 | 26.7 |
| 27.x | before 27 | 27 |
Is CVE-2026-65374 being exploited?
Public exploit code is available.
How to fix CVE-2026-65374
- Upgrade macOS Sequoia 15.x to 15.8, Tahoe 26.x to 26.7, or Golden Gate 27.x to 27.
- Block or restrict access to untrusted WebDAV servers at network boundaries and web proxies.
- Advise users not to connect to unknown WebDAV links or servers and disable automatic connections to WebDAV where configurable.
- Monitor endpoint logs for unexpected WebDAV connections and signs of exploitation and follow Apple's security guidance.
Frequently asked questions
Is CVE-2026-65374 being actively exploited?
Public exploit code is available for CVE-2026-65374.
Which macOS versions are affected by CVE-2026-65374?
macOS Sequoia 15.x before 15.8, Tahoe 26.x before 26.7, and Golden Gate 27.x before 27 are listed as affected.
Is there a patch for CVE-2026-65374?
Yes; Apple released fixes in macOS Sequoia 15.8, Tahoe 26.7, and Golden Gate 27.
Does CVE-2026-65374 require authentication?
No authentication is required, but the vulnerability requires a user to connect or be lured to a malicious WebDAV server (user interaction is needed).
References
- nvd.nist.gov/vuln/detail/CVE-2026-65374
- cve.org/CVERecord?id=CVE-2026-65374
- support.apple.com/en-us/149035
- support.apple.com/en-us/149042
- support.apple.com/en-us/149043
- All Apple CVEs on CVE Radar
- CVEs published in September 2026