CVE-2026-86949

Analyzed Analyzed - Analysis Complete

Sandbox Escape in Xcode via Library Validation Bypass

Publication date: 2026-10-20

Last updated on: 2026-10-29

Assigner: Apple Inc.

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-29

Generated

2026-11-09

AI Q&A

2026-10-20

EPSS Evaluated

2026-11-07

NVD

CVE-2026-86949

EUVD

EUVD-2026-104729

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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 involves a flaw in Xcode 27 where a malicious app could bypass sandbox restrictions due to insufficient library validation on affected binaries. This allows the app to escape its isolated environment.

Detection Guidance

Detection requires updating to Xcode 27 and verifying library validation enforcement. Check for sandbox escape attempts by monitoring app behavior and system logs for unauthorized access patterns.

Impact Analysis

If exploited, this vulnerability could let a malicious app access system resources or data outside its intended sandbox. This may lead to unauthorized data access, privilege escalation, or further compromise of the host system.

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. Such issues may pose risks to compliance if exploited, but no explicit compliance implications are mentioned in the context.

Mitigation Strategies

Update to Xcode 27 to address the sandbox escape vulnerability. Remove any affected binaries if they cannot be updated immediately.

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