Sandbox Escape Vulnerability in Xcode by Apple
CVE-2026-86949

8.8HIGH

Key Information:

Vendor

Apple
Status
Xcode
Vendor
CVE Published:
20 October 2026

What is CVE-2026-86949?

A vulnerability in Xcode has been identified that allows a malicious application to potentially escape its sandbox environment. This occurs due to insufficient library validation in the affected binaries. Users are advised to upgrade to Xcode 27, where this issue has been resolved to enhance overall security and maintain a safe software development environment.

Affected Version(s)

Xcode 0 < 27

References

https://support.apple.com/en-us/149040

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.