CVE-2026-86949

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-20 · updated 2026-10-29
Weakness: CWE-829

Description

This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcode 27. A malicious app may be able to break out of its sandbox.

Affected products

Apple Xcode: before 27.0 — fixed in 27.0
Apple Xcode: before 27 — fixed in 27

How to fix

Upgrade to a fixed version: Apple Xcode 27.0; Apple Xcode 27. Check the vendor advisory for mitigations.

References

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

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