A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, and macOS 26.3.2. Processing maliciously crafted web content may bypass Same Origin Policy.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apple | macOS | affected |
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| Apple | macOS | affected |
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| Apple | iOS | affected |
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| Apple | iPadOS | affected |
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Project Subscriptions
No data.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://support.apple.com/en-us/126604 |
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History
Tue, 17 Mar 2026 22:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, and macOS 26.3.2. Processing maliciously crafted web content may bypass Same Origin Policy. | |
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Projects
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MITRE
Status: PUBLISHED
Assigner: apple
Published:
Updated: 2026-03-17T22:29:48.227Z
Reserved: 2025-11-11T14:43:07.862Z
Link: CVE-2026-20643
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-03-17T23:16:17.193
Modified: 2026-03-17T23:16:17.193
Link: CVE-2026-20643
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.