CVE-2026-86948

Modified Modified - Updated After Analysis

Sandbox Escape via Library Validation Bypass in Xcode

Publication date: 2026-10-20

Last updated on: 2026-10-30

Assigner: Apple Inc.

Description

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

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-30

Generated

2026-11-09

AI Q&A

2026-10-20

EPSS Evaluated

2026-11-08

NVD

CVE-2026-86948

EUVD

EUVD-2026-104728

Affected Vendors & Products

Vendor	Product	Version / Range
apple	xcode	to 27.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CWE-829	The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

Attack-Flow Graph

Executive Summary

This vulnerability allows an app to escape its sandbox restrictions due to insufficient library validation in Xcode 27. Sandboxing is a security mechanism that isolates apps to limit their access to system resources and data.

Impact Analysis

An attacker could exploit this to break out of an app's sandbox, potentially gaining unauthorized access to system resources, sensitive data, or other apps' data on the device.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with GDPR, HIPAA, or other standards. The vulnerability involves a sandbox escape in Xcode 27, which could allow unauthorized access to sensitive data, potentially affecting confidentiality requirements under such regulations.

Mitigation Strategies

Update to Xcode 27 to enforce library validation and prevent sandbox escape. Remove any affected binaries if they are not part of a trusted application.

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