CVE-2026-43660 Details
Description
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 vulnerability in Apple WebKit was identified, allowing maliciously crafted web content to bypass Content Security Policy enforcement. This issue affects multiple Apple operating systems, including iOS 18.7.9, iPadOS 18.7.9, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5. The vulnerability arises from a validation issue that was not properly addressed, enabling the exploitation of Content Security Policy mechanisms.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.apple.com/en-us/127110 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/127111 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/127115 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/127118 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/127119 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/127120 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/127121 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-693 | Protection Mechanism Failure | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple ipados | < 18.7.9 >= 26.0, < 26.5 |
CPE
Remediation
| |
| apple iphone os | < 18.7.9 >= 26.0, < 26.5 |
CPE
Remediation
| |
| apple macos | >= 26.0, < 26.5 |
CPE
Remediation
| |
| apple tvos | < 26.5 |
CPE
Remediation
| |
| apple visionos | < 26.5 |
CPE
Remediation
| |
| apple watchos | < 26.5 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | CVE Modified | [email protected] |
| May 12, 2026 | Initial Analysis | [email protected] |
| May 12, 2026 | CVE Modified | CISA-ADP |
| May 11, 2026 | New CVE Received | [email protected] |