CVE-2026-20631 — HIGH (8.8)

Q: What is CVE-2026-20631?

CVE-2026-20631 is a vulnerability with a CVSS score of 8.8 (HIGH). A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.

Q: How severe is CVE-2026-20631?

CVE-2026-20631 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-20631?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.

Vulnerability Description

A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Macos	>= 26.0, < 26.4

References

https://support.apple.com/en-us/126794Vendor Advisory

FAQ

What is CVE-2026-20631?

CVE-2026-20631 is a vulnerability with a CVSS score of 8.8 (HIGH). A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.

How severe is CVE-2026-20631?

CVE-2026-20631 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20631?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.