CVE-2026-86949 Xcode - Sandbox Escape

Xcode contains a sandbox escape vulnerability caused by lack of library validation enforcement on affected binaries, letting malicious apps break out of their sandbox, exploit requires malicious app execution.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Sandbox Escape
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
20 October 2026
Updated
20 October 2026
Weakness
CWE-829

Vendor fix

Update to Xcode 27 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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