CVE-2026-64728
published 2026-07-27CVE-2026-64728: A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS…
PriorityP433medium6.5CVSS 3.1
AVNACLPRNUIRSUCNIHAN
EPSS
0.37%
30.3th percentile
A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 26.6 | 26.6 |
| apple | ipados | < 26.6 | 26.6 |
| apple | iphone_os | < 26.6 | 26.6 |
| apple | macos | < 26.6 | 26.6 |
| apple | macos | >= 26.0 < 26.6 | 26.6 |
| apple | safari | < 26.6 | 26.6 |
| apple | tvos | < 26.6 | 26.6 |
| apple | visionos | < 26.6 | 26.6 |
| apple | watchos | < 26.6 | 26.6 |
| ubuntu | webkit2gtk | — | — |
| webkitgtk | webkitgtk | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
vendor_redhat6.5MEDIUM
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VulDB
Apple iOS/iPadOS/macOS/Safari/tvOS/visionOS/watchOS up to 26.5 sandbox
vuldb·2026-07-28
CVE-2026-64728 [CRITICAL] Apple iOS/iPadOS/macOS/Safari/tvOS/visionOS/watchOS up to 26.5 sandbox
A vulnerability described as critical has been identified in Apple iOS, iPadOS, macOS, Safari, tvOS, visionOS and watchOS up to 26.5. This affects an unknown function. Executing a manipulation can lead to sandbox issue.
This vulnerability is registered as CVE-2026-64728. It is possible to launch the attack remotely. No exploit is available.
Upgrading the affected component is recommended.
GHSA
A permissions issue was addressed with improved validation.
ghsa_unreviewed·2026-07-27
CVE-2026-64728 [MEDIUM] CWE-693 A permissions issue was addressed with improved validation.
A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
Ubuntu
WebKitGTK vulnerabilities
vendor_ubuntu·2026-08-31
CVE-2026-43742 WebKitGTK vulnerabilities
Title: WebKitGTK vulnerabilities
Summary: Several security issues were fixed in WebKitGTK.
Several security issues were discovered in the WebKitGTK Web and JavaScript
engines. If a user were tricked into viewing a malicious website, a remote
attacker could exploit a variety of issues related to web browser security,
including cross-site scripting attacks, denial of service attacks, and
arbitrary code execution.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK, such as Epiphany, to make all the necessary changes.
Red Hat
webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy
vendor_redhat·2026-08-20·CVSS 6.5
CVE-2026-64728 [MEDIUM] CWE-693 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy
webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy
A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
A flaw was found in WebKitGTK. Processing malicious web content can violate the iframe sandboxing policy due to improper validation.
Statement: To exploit this flaw, an attacker needs to trick a user into processing or loading malicious web content. Due to this reason, this flaw has been rated with a moderate severity.
Mitigation: Do not process or load untrusted web content with WebKitGTK.
In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy
bugzilla·2026-08-20·CVSS 6.5
CVE-2026-64728 [MEDIUM] CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy
CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy
A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
Bugzilla
CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy [epel-all]
bugzilla·2026-08-20·CVSS 6.5
CVE-2026-64728 [MEDIUM] CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy [epel-all]
CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
Bugzilla
CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy [fedora-all]
bugzilla·2026-08-20·CVSS 6.5
CVE-2026-64728 [MEDIUM] CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy [fedora-all]
CVE-2026-64728 webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
Sans Isc
Apple Patches Everything (July 2026), (Wed, Jul 29th)
blogs_sans_isc·2026-07-29·CVSS 5.5
CVE-2026-28849 [MEDIUM] Apple Patches Everything (July 2026), (Wed, Jul 29th)
Apple Patches Everything (July 2026)
Published: 2026-07-29. Last Updated: 2026-07-29 07:32:37 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
I am a bit late with this summary, but this week Apple released updates to all its operating systems and Safari. The Safari update, as usual, targets macOS prior to macOS 26. macOS updates covered the two older versions (14 and 15), while other operating system patches only covered the current 26 versions.
A total of 187 vulnerabilities are addressed in this update. Many cover multiple operating systems. Apple did not label any of the vulnerabilities as already being exploited.
Three vulnerabilities that caught my interest are CVE-2026-28849, CVE-2026-28900, and CVE-2026-28914. These issues appear to be the vulnerability described in https://m
2026-07-27
Published