CVE-2026-20658 — HIGH (7.8)

Q: What is CVE-2026-20658?

CVE-2026-20658 is a vulnerability with a CVSS score of 7.8 (HIGH). A package validation issue was addressed by blocking the vulnerable package. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

Q: How severe is CVE-2026-20658?

CVE-2026-20658 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-20658?

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

Vulnerability Description

A package validation issue was addressed by blocking the vulnerable package. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

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, < 26.3

References

https://support.apple.com/en-us/126348Release NotesVendor Advisory

FAQ

What is CVE-2026-20658?

CVE-2026-20658 is a vulnerability with a CVSS score of 7.8 (HIGH). A package validation issue was addressed by blocking the vulnerable package. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

How severe is CVE-2026-20658?

CVE-2026-20658 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20658?

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