CVE-2026-43660
published 2026-05-11CVE-2026-43660: A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.27%
18.7th percentile
A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 18.7.9 | 18.7.9 |
| apple | ios_and_ipados | < 26.5 | 26.5 |
| apple | ipados | < 18.7.9 | 18.7.9 |
| apple | ipados | >= 26.0 < 26.5 | 26.5 |
| apple | iphone_os | < 18.7.9 | 18.7.9 |
| apple | iphone_os | >= 26.0 < 26.5 | 26.5 |
| apple | macos | < 26.5 | 26.5 |
| apple | macos | >= 26.0 < 26.5 | 26.5 |
| apple | safari | < 26.5 | 26.5 |
| apple | tvos | < 26.5 | 26.5 |
| apple | visionos | < 26.5 | 26.5 |
| apple | watchos | < 26.5 | 26.5 |
| webkitgtk | webkitgtk | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vendor_redhat7.5HIGH
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Red Hat
webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
vendor_redhat·2026-06-02·CVSS 7.5
CVE-2026-43660 [HIGH] CWE-693 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
A flaw was found in WebKitGTK. Processing malicious web content may prevent Content Security Policy from being enforced due to a validation issue with improper logic.
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
GHSA
GHSA-xcxj-2mhj-x95h: A validation issue was addressed with improved logic
ghsa_unreviewed·2026-05-11
CVE-2026-43660 [HIGH] CWE-693 GHSA-xcxj-2mhj-x95h: A validation issue was addressed with improved logic
A validation issue was addressed with improved logic. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced [epel-all]
bugzilla·2026-06-02·CVSS 7.5
CVE-2026-43660 [HIGH] CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced [epel-all]
CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced [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.
Bugzilla
CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced [fedora-all]
bugzilla·2026-06-02·CVSS 7.5
CVE-2026-43660 [HIGH] CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced [fedora-all]
CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced [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.
Bugzilla
CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
bugzilla·2026-06-02·CVSS 7.5
CVE-2026-43660 [HIGH] CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
CVE-2026-43660 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
Sans Isc
Apple Patches Everything, (Mon, May 11th)
blogs_sans_isc·2026-05-11·CVSS 5.5
CVE-2025-43524 [MEDIUM] Apple Patches Everything, (Mon, May 11th)
Apple Patches Everything
Published: 2026-05-11. Last Updated: 2026-05-11 22:19:13 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Apple today released its typical feature update across it's operating systems (iOS, iPadOS, macOS, tvOS, watchOS, vision OS). With this update, Apple patched 84 different vulnerabilities. Updates are available for the "26" series of operating systems, as well as for the previous "18" version of iOS/iPadOS, and two versions back for macOS (version 14 and 15).
None of the vulnerabilities has been exploited. The number of addressed vulnerabilities is about average compared to similar Apple updates.
Figure: Number of Vulnerabilities patched for each security update. Last one in red at the end.
iOS 26.5 and iPadOS 26.5 iOS 18.7.9 and iPadOS 18.7.9 macOS Tahoe
2026-05-11
Published