This issue was addressed through improved state management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may be able to silently hijack clipboard data.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Apple
  • Ios And Ipados
  • Macos
  • Safari

No data.

No data.

References
Link Providers
https://bugs.webkit.org/show_bug.cgi?id=313478 cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-43721 cve-icon
https://support.apple.com/en-us/127594 cve-icon
https://support.apple.com/en-us/127595 cve-icon
https://support.apple.com/en-us/127685 cve-icon
https://webkitgtk.org/security/WSA-2026-0004.html cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-43721 cve-icon
History

Fri, 17 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title webkitgtk: webkitgtk: A malicious website may silently hijack clipboard data
References
Metrics threat_severity

None

 threat_severity

Moderate

Tue, 30 Jun 2026 22:15:00 +0000

Type Values Removed Values Added
Title Clipboard Hijack via Improper State Management in Apple Web Browsers and OS

Tue, 30 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

 cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 30 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Title Clipboard Hijack via Improper State Management in Apple Web Browsers and OS

Tue, 30 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Title Malicious Website Clipboard Hijack via Improper State Management
Weaknesses CWE-200

Tue, 30 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-732
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 30 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple safari
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple safari

Mon, 29 Jun 2026 22:30:00 +0000

Type Values Removed Values Added
Title Malicious Website Clipboard Hijack via Improper State Management
Weaknesses CWE-200

Mon, 29 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
Description This issue was addressed through improved state management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may be able to silently hijack clipboard data.
References
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-06-29T19:43:10.464Z

Updated: 2026-06-30T20:01:46.573Z

Reserved: 2026-05-01T22:46:21.645Z

Link: CVE-2026-43721

cve-icon Vulnrichment

Updated: 2026-06-30T13:04:45.853Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-10T00:00:00Z

Links: CVE-2026-43721 - Bugzilla