CVE-2026-86874
Analyzed Analyzed - Analysis Complete

Xcode Out-of-Bounds Read in Binary Parsing

Publication date: 2026-10-20

Last updated on: 2026-10-29

Assigner: Apple Inc.

Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Xcode 27. Parsing a maliciously crafted binary may lead to unexpected tool termination.

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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-2026-86874
EUVD
EUVD-2026-104712

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apple xcode to 27.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This is an out-of-bounds read vulnerability in Xcode 27. It occurs when parsing a maliciously crafted binary, which may cause unexpected termination of the tool. The issue was fixed by improving input validation.

Detection Guidance

This vulnerability is specific to Xcode 27 and involves parsing maliciously crafted binaries. Detection would require checking if Xcode 27 is installed and monitoring for unexpected tool termination during binary parsing. No direct commands are provided in the context to detect this issue.

Impact Analysis

If exploited, this vulnerability could lead to unexpected termination of Xcode when processing malicious files. This may disrupt development workflows but does not appear to allow code execution or data access.

Mitigation Strategies

Update to Xcode 27 or later to address the out-of-bounds read vulnerability. Ensure your system meets the requirements for macOS Tahoe 26.6 or later.

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