What Xcode 26 Fixes
Xcode 26, released September 15, 2025, fixes 5 vulnerabilities in 4 parts of the system, according to Apple's security advisory.
Apple does not say that any of them were exploited before the fix. That makes Xcode 26 a routine security update: worth installing soon, not an emergency.
It has since been superseded: the newest security release for Xcode is Xcode 27.2, from October 29, 2026, which includes these fixes.
| What an attacker could do | Fixes |
|---|---|
| Run code | 1 |
| Elevated privileges or sandbox escape | 2 |
| Crash or denial of service | 2 |
Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.
Which Devices Get Xcode 26
Apple lists Xcode 26 for: macOS Sequoia 15.6 and later.
How to Install Xcode 26
Xcode updates come from the Mac App Store, or as a download from Apple's developer website for anyone who keeps more than one version installed.
Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past Xcode 26 there is nothing to do.
Every Fix in Xcode 26
All 5 CVEs in Apple's advisory, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.
-
Git
Cloning a maliciously crafted repository may result in remote code execution
This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org .
CVE-2025-48384 -
IDE CoreML
An app may be able to read and write files outside of its sandbox
The issue was addressed with improved checks.
CVE-2025-43263 -
Xcode
An app may be able to break out of its sandbox
This issue was addressed with improved checks.
CVE-2025-43371 -
Dev Tools
Processing an overly large path value may crash a process
A path handling issue was addressed with improved validation.
CVE-2025-43370 -
Dev Tools
Processing an overly large path value may crash a process
The issue was addressed with improved checks.
CVE-2025-43375
Xcode Security Release History
Xcode 26 in context: the security releases Apple has published for Xcode, newest first, with the number of fixes each carried.
| Release | Released | Fixes |
|---|---|---|
| Xcode 27.2 | October 29, 2026 | 2 |
| Xcode 27 | September 14, 2026 | 5 |
| Xcode 26.4 | March 24, 2026 | 2 |
| Xcode 26.1 | November 3, 2025 | 2 |
| Xcode 26 | September 15, 2025 | 5 |
| Xcode 16.3 | March 31, 2025 | 3 |
| Xcode 16 | September 16, 2024 | 5 |
| Xcode 15.3 | March 5, 2024 | 1 |
Frequently Asked Questions
What does Xcode 26 fix?
5 security vulnerabilities in 4 parts of the system, from Apple's advisory of September 15, 2025. 1 could have let an attacker run code.
Was anything fixed in Xcode 26 exploited?
Apple does not say so for any of the 5 fixes.
Which devices can install Xcode 26?
macOS Sequoia 15.6 and later.
Is Xcode 26 the latest security update?
No. Xcode 27.2, from October 29, 2026, is newer and includes these fixes.
Source: About the security content of Xcode 26, Apple. Rechecked automatically while Apple is still adding entries.