CVE-2026-28861
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
A logic issue in Safari and Apple systems was fixed with improved state management, preventing malicious websites from accessing script message handlers intended for other origins. The patch is included in Safari 26.4, iOS 18.7.7, iPadOS 18.7.7, iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, and visionOS 26.4.
Risk Assessment
The organization faces risk of data theft or session hijacking if a malicious website exploits this vulnerability to intercept script messages from other origins.
Recommendation
Immediately update all Apple devices to the latest versions: iOS 18.7.7, iPadOS 18.7.7, macOS Tahoe 26.4, visionOS 26.4, and Safari to version 26.4.
Other vulnerabilities in WebKit
See all- CVE-2017-7160High
An issue was discovered in certain Apple products affecting iOS before 11.2, Safari before 11.0.2, iCloud before 7.2 on Windows, iTunes before 12.7.2 on Windows, and tvOS before 11.2. The issue involves the 'WebKit' component and allows remote attackers to execute arbitrary code or cause a denial of service via a crafted web site.
- CVE-2017-7157High
An issue was discovered in certain Apple products, including iOS, Safari, iCloud, iTunes, and tvOS. The vulnerability in the 'WebKit' component allows remote attackers to execute arbitrary code or cause a denial of service via a crafted website.
- CVE-2017-7156High
An issue was discovered in certain Apple products related to the 'WebKit' component. Affects iOS before 11.2, Safari before 11.0.2, iCloud before 7.2 on Windows, iTunes before 12.7.2 on Windows, and tvOS before 11.2. This issue allows remote attackers to execute arbitrary code or cause a denial of service via a crafted website.
- CVE-2017-13870High
An issue was discovered in certain Apple products affecting iOS before 11.2, Safari before 11.0.2, iCloud before 7.2 on Windows, iTunes before 12.7.2 on Windows, and tvOS before 11.2. The issue involves the 'WebKit' component and allows remote attackers to execute arbitrary code or cause a denial of service via a crafted website.
- CVE-2017-13866High
An issue was discovered in certain Apple products affecting iOS before 11.2, Safari before 11.0.2, iCloud before 7.2 on Windows, iTunes before 12.7.2 on Windows, and tvOS before 11.2. The issue involves the 'WebKit' component, allowing remote attackers to execute arbitrary code or cause a denial of service via a crafted website.
- CVE-2017-13856High
An issue was discovered in certain Apple products related to the 'WebKit' component. Affects iOS before 11.2, Safari before 11.0.2, iCloud before 7.2 on Windows, iTunes before 12.7.2 on Windows, and tvOS before 11.2. This issue allows remote attackers to execute arbitrary code or cause a denial of service via a crafted website.
- CVE-2017-13803High
An issue was discovered in certain Apple products affecting iOS before 11.1, Safari before 11.0.1, iCloud before 7.1 on Windows, iTunes before 12.7.1 on Windows, and tvOS before 11.1. The issue involves the 'WebKit' component and allows remote attackers to execute arbitrary code or cause a denial of service via a crafted web site.
- CVE-2017-13802High
An issue was discovered in certain Apple products related to the 'WebKit' component. It affects iOS before 11.1, Safari before 11.0.1, iCloud before 7.1 on Windows, iTunes before 12.7.1 on Windows, and tvOS before 11.1. This issue allows remote attackers to execute arbitrary code or cause a denial of service.
- CVE-2017-13798High
An issue was discovered in certain Apple products related to the 'WebKit' component. Affects iOS before 11.1, Safari before 11.0.1, iCloud before 7.1 on Windows, iTunes before 12.7.1 on Windows, and tvOS before 11.1. This issue allows remote attackers to execute arbitrary code or cause a denial of service via a crafted web site.
- CVE-2017-13797High
An issue was discovered in certain Apple products affecting iOS before 11.1, Safari before 11.0.1, iCloud before 7.1 on Windows, iTunes before 12.7.1 on Windows, and tvOS before 11.1. The issue involves the 'WebKit' component and allows remote attackers to execute arbitrary code or cause a denial of service via a crafted web site.
Original NVD description (English source)
A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS