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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://support.apple.com/en-us/149040 |
|
History
Wed, 21 Oct 2026 04:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 20 Oct 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Xcode Library Validation Bypass Enables Sandbox Escape |
Tue, 20 Oct 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Sandbox Escape via Unvalidated Libraries in Xcode | |
| Weaknesses | CWE-272 |
Tue, 20 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-829 | |
| Metrics |
cvssV3_1
|
Tue, 20 Oct 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Sandbox Escape via Unvalidated Libraries in Xcode | |
| Weaknesses | CWE-272 |
Tue, 20 Oct 2026 04:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apple
Apple xcode |
|
| Vendors & Products |
Apple
Apple xcode |
Tue, 20 Oct 2026 01:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| References |
|
Status: PUBLISHED
Assigner: apple
Published: 2026-10-20T00:50:54.372Z
Updated: 2026-10-21T03:56:20.055Z
Reserved: 2026-09-08T16:43:41.881Z
Link: CVE-2026-86949
Updated: 2026-10-20T13:13:38.514Z
Status : Undergoing Analysis
Published: 2026-10-20T01:17:28.370
Modified: 2026-10-21T04:18:11.647
Link: CVE-2026-86949
No data.