CVE-2026-43705
published 2026-06-29CVE-2026-43705: A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2…
PriorityP347high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.51%
41.6th percentile
A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to memory corruption.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 18.7.10 | 18.7.10 |
| apple | ios_and_ipados | < 26.5.2 | 26.5.2 |
| apple | ipados | < 26.5.2 | 26.5.2 |
| apple | iphone_os | < 26.5.2 | 26.5.2 |
| apple | macos | < 26.5.2 | 26.5.2 |
| apple | safari | < 26.5.2 | 26.5.2 |
| apple | tvos | < 26.6 | 26.6 |
| apple | visionos | < 26.6 | 26.6 |
| apple | watchos | < 26.6 | 26.6 |
| ubuntu | webkit2gtk | — | — |
| webkitgtk | webkitgtk | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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VulDB
Apple Safari/iOS/iPadOS/macOS up to 26.5.1 Web type confusion
vuldb·2026-06-30·CVSS 8.8
CVE-2026-43705 [HIGH] Apple Safari/iOS/iPadOS/macOS up to 26.5.1 Web type confusion
A vulnerability described as critical has been identified in Apple Safari, iOS, iPadOS and macOS up to 26.5.1. The impacted element is an unknown function of the component Web Handler. Executing a manipulation can lead to type confusion.
This vulnerability is tracked as CVE-2026-43705. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is recommended.
GHSA
A type confusion issue was addressed with improved checks.
ghsa_unreviewed·2026-06-29
CVE-2026-43705 [HIGH] CWE-843 A type confusion issue was addressed with improved checks.
A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to memory corruption.
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: webkitgtk: Maliciously crafted web content may lead to memory corruption
vendor_redhat·2026-07-10·CVSS 8.8
CVE-2026-43705 [HIGH] CWE-843 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption
webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption
A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to memory corruption.
A flaw was found in WebKitGTK. Processing maliciously crafted web content can trigger a type confusion due to improper checks, leading to memory corruption.
Package: pywebkitgtk (Red Hat Enterprise Linux 6) - Out of support scope
Package: webkitgtk (Red Hat Enterprise Linux 6) - Out of support scope
Package: webkitgtk3 (Red Hat Enterprise Linux 7) - Out of support scope
Package: webkitgtk4 (Red Hat Enterprise Linux 7) - Out of support scope
Package: webkit2gtk3 (Red Hat Enterprise Li
No detection rules found.
No public exploits indexed.
Sans Isc
Apple Patches iOS and macOS, (Mon, Aug 17th)
blogs_sans_isc·2026-08-17·CVSS 5.5
CVE-2026-28958 [MEDIUM] Apple Patches iOS and macOS, (Mon, Aug 17th)
Apple Patches iOS and macOS
Published: 2026-08-17. Last Updated: 2026-08-17 20:26:39 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Apple today released updates for iOS/iPadOS (26 and 18) and macOS 26. This update fixes 108 vulnerabilities and comes about two weeks after the much smaller macOS update that addressed the single screen-sharing vulnerability. This vulnerability did not affect iOS/iPadOS.
None of the vulnerabilities has been exploited so far. There are a few WebKit vulnerabilities, but no standalone Safari patch for older operating systems. 87 of the vulnerabilities affect only iOS 18, making this more of an iOS 18 release than one for the newer operating systems. Only six vulnerabilities affect all three OSs released today. All 6 vulnerabilities affect WebKit.
Apple's
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
Sans Isc
June 2026 Apple Updates, (Tue, Jun 30th)
blogs_sans_isc·2026-06-30·CVSS 9.1
CVE-2026-39868 [CRITICAL] June 2026 Apple Updates, (Tue, Jun 30th)
June 2026 Apple Updates
Published: 2026-06-30. Last Updated: 2026-06-30 09:31:27 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Apple released updates for iOS/iPadOS, macOS, and Safari on Monday. There have been no updates for other Apple operating systems (visionOS, watchOS, tvOS). Usually, Apple updates all products at the same time.
Most of the vulnerabilities affect the web browser (WebKit, libxslt, WebRTC, and Web Extension). Only four of the vulnerabilities are not directly related to web content: Three Kernel issues and one vulnerability in the IOGPUFamily.
None of the vulnerabilities is labeled as "exploited".
iOS 26.5.2 and iPadOS 26.5.2 macOS Tahoe 26.5.2 Safari 26.5.2
CVE-2026-39868: An app may be able to cause unexpected system termination or corrupt kernel memory.
A
Bugzilla
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [epel-all]
bugzilla·2026-07-14·CVSS 8.8
CVE-2026-43705 [HIGH] CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [epel-all]
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [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 type confusion issue was addressed with improved checks.
Impact: maliciously crafted web content may lead to memory corruption
Advisory: https://webkitgtk.org/security/WSA-2026-0004.html
WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=314528
Bugzilla
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [fedora-44]
bugzilla·2026-07-14·CVSS 8.8
CVE-2026-43705 [HIGH] CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [fedora-44]
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [fedora-44]
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 type confusion issue was addressed with improved checks.
Impact: maliciously crafted web content may lead to memory corruption
Advisory: https://webkitgtk.org/security/WSA-2026-0004.html
WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=314528
Bugzilla
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [fedora-43]
bugzilla·2026-07-14·CVSS 8.8
CVE-2026-43705 [HIGH] CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [fedora-43]
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption [fedora-43]
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 type confusion issue was addressed with improved checks.
Impact: maliciously crafted web content may lead to memory corruption
Advisory: https://webkitgtk.org/security/WSA-2026-0004.html
WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=314528
Bugzilla
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption
bugzilla·2026-07-14·CVSS 8.8
CVE-2026-43705 [HIGH] CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption
CVE-2026-43705 webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption
A type confusion issue was addressed with improved checks.
Impact: maliciously crafted web content may lead to memory corruption
Advisory: https://webkitgtk.org/security/WSA-2026-0004.html
WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=314528
2026-06-29
Published