CVE-2026-28859
Received
Received - Intake
Sandbox Escape via Memory Handling Flaw in Safari and Apple OS
Publication date: 2026-03-25
Last updated on: 2026-03-25
Assigner: Apple Inc.
Description
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A malicious website may be able to process restricted web content outside the sandbox.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | ipados | to 26.4 (exc) |
| apple | iphone_os | to 26.4 (exc) |
| apple | tvos | to 26.4 (exc) |
| apple | visionos | to 26.4 (exc) |
| apple | watchos | to 26.4 (exc) |
| apple | macos | to 26.4 (exc) |
| apple | safari | to 26.4 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
