CVE-2026-43804
published 2026-07-27CVE-2026-43804: This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6…
PriorityP428medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.43%
36.3th percentile
This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.
Affected
9 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 | visionos | < 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:N/A:H
vendor_redhat6.5MEDIUM
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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: Visiting a website may lead to an app denial-of-service
vendor_redhat·2026-08-20·CVSS 6.5
CVE-2026-43804 [MEDIUM] CWE-664 webkitgtk: Visiting a website may lead to an app denial-of-service
webkitgtk: Visiting a website may lead to an app denial-of-service
This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.
A flaw was found in WebKitGTK. Visiting a malicious website can cause an application denial of service due to improper state management.
Statement: To exploit this flaw, an attacker needs to trick a user into visiting a malicious website. Due to this reason, this flaw has been rated with a moderate severity.
Mitigation: Do not visit untrusted websites or load untrusted web content with WebKitGTK.
In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes,
GHSA
This issue was addressed through improved state management.
ghsa_unreviewed·2026-07-27
CVE-2026-43804 [MEDIUM] CWE-400 This issue was addressed through improved state management.
This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service
bugzilla·2026-08-20·CVSS 6.5
CVE-2026-43804 [MEDIUM] CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service
CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service
This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.
Bugzilla
CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service [fedora-all]
bugzilla·2026-08-20·CVSS 6.5
CVE-2026-43804 [MEDIUM] CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service [fedora-all]
CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service [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.
This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.
Bugzilla
CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service [epel-all]
bugzilla·2026-08-20·CVSS 6.5
CVE-2026-43804 [MEDIUM] CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service [epel-all]
CVE-2026-43804 webkitgtk: Visiting a website may lead to an app denial-of-service [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.
This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.
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