VulnerabilityModified
CVE-2026-28859
A malicious website may be able to process restricted web content outside the sandbox.
MEDIUM 4.3EPSS 0.64%
Does this matter?
Lower severity and a low EPSS score (0.64%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- EPSS
- 0.64% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-416, CWE-787, CWE-120
- Affected
- apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/visionos · apple/watchos
- Source
- product-security@apple.com
References
- https://support.apple.com/en-us/126792Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126794Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126797Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126798Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126799Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126800Release Notes, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:10702
- https://access.redhat.com/errata/RHSA-2026:11329
- https://access.redhat.com/errata/RHSA-2026:11814
- https://access.redhat.com/errata/RHSA-2026:13845
- https://access.redhat.com/errata/RHSA-2026:14659
- https://access.redhat.com/errata/RHSA-2026:16056
- https://access.redhat.com/errata/RHSA-2026:16695
- https://access.redhat.com/errata/RHSA-2026:19206
- https://access.redhat.com/errata/RHSA-2026:19535
- https://access.redhat.com/errata/RHSA-2026:22136
- https://access.redhat.com/errata/RHSA-2026:9692
- https://access.redhat.com/security/cve/CVE-2026-28859
- https://bugzilla.redhat.com/show_bug.cgi?id=2453006
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28859.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.