Amazon Linux 2 Security Advisory: ALAS2-2026-3270
Advisory Released Date: 2026-04-30
Advisory Updated Date: 2026-04-30
FAQs regarding Amazon Linux ALAS/CVE Severity
A memory initialization issue was addressed with improved memory handling. This issue is fixed in tvOS 26.2, Safari 26.2, watchOS 26.2, visionOS 26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2. Processing maliciously crafted web content may disclose internal states of the app. (CVE-2025-46299)
A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, 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. Processing maliciously crafted web content may bypass Same Origin Policy. (CVE-2026-20643)
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-20664)
This issue was addressed through 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, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may prevent Content Security Policy from being enforced. (CVE-2026-20665)
An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may be able to fingerprint the user. (CVE-2026-20691)
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-28857)
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A malicious website may be able to process restricted web content outside the sandbox. (CVE-2026-28859)
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. (CVE-2026-28861)
A logic issue was addressed with improved checks. 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. Visiting a maliciously crafted website may lead to a cross-site scripting attack. (CVE-2026-28871)
Affected Packages:
webkitgtk4
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update webkitgtk4 or yum update --advisory ALAS2-2026-3270 to update your system.
aarch64:
webkitgtk4-2.52.1-1.amzn2.aarch64
webkitgtk4-devel-2.52.1-1.amzn2.aarch64
webkitgtk4-jsc-2.52.1-1.amzn2.aarch64
webkitgtk4-jsc-devel-2.52.1-1.amzn2.aarch64
i686:
webkitgtk4-2.52.1-1.amzn2.i686
webkitgtk4-devel-2.52.1-1.amzn2.i686
webkitgtk4-jsc-2.52.1-1.amzn2.i686
webkitgtk4-jsc-devel-2.52.1-1.amzn2.i686
src:
webkitgtk4-2.52.1-1.amzn2.src
x86_64:
webkitgtk4-2.52.1-1.amzn2.x86_64
webkitgtk4-devel-2.52.1-1.amzn2.x86_64
webkitgtk4-jsc-2.52.1-1.amzn2.x86_64
webkitgtk4-jsc-devel-2.52.1-1.amzn2.x86_64