Detections
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Amazon Linux 2 : webkitgtk4, --advisory ALAS2-2026-3223 (ALAS-2026-3223)
medium Nessus Plugin ID 304578
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of webkitgtk4 installed on the remote host is prior to 2.50.6-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3223 advisory.The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, macOS Sequoia 15.6, iOS 18.6 and iPadOS 18.6, tvOS 18.6, watchOS 11.6, visionOS 2.6. Processing maliciously crafted web content may lead to an unexpected Safari crash. (CVE-2025-43213)
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, watchOS 11.6, iOS 18.6 and iPadOS 18.6, tvOS 18.6, macOS Sequoia 15.6, visionOS 2.6. Processing maliciously crafted web content may lead to an unexpected Safari crash. (CVE-2025-43214)
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash. (CVE-2025-43457)
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.2, Safari 26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, iOS 18.7.2 and iPadOS 18.7.2, visionOS 26.2.
Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2025-43511)
This issue was addressed through improved state management. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-20608)
The issue was addressed with improved memory handling. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3.
Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-20635)
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-20636)
The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-20644)
The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. A remote attacker may be able to cause a denial-of-service. (CVE-2026-20652)
This issue was addressed through improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions. (CVE-2026-20676)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update webkitgtk4' or or 'yum update --advisory ALAS2-2026-3223' to update your system.See Also
https://alas.aws.amazon.com//AL2/ALAS2-2026-3223.html
https://alas.aws.amazon.com/faqs.html
https://explore.alas.aws.amazon.com/CVE-2025-43213.html
https://explore.alas.aws.amazon.com/CVE-2025-43214.html
https://explore.alas.aws.amazon.com/CVE-2025-43457.html
https://explore.alas.aws.amazon.com/CVE-2025-43511.html
https://explore.alas.aws.amazon.com/CVE-2026-20608.html
https://explore.alas.aws.amazon.com/CVE-2026-20635.html
https://explore.alas.aws.amazon.com/CVE-2026-20636.html
https://explore.alas.aws.amazon.com/CVE-2026-20644.html
Plugin Details
Severity: Medium
ID: 304578
File Name: al2_ALAS-2026-3223.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 4/1/2026
Updated: 4/1/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2026-20676
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:webkitgtk4-devel, p-cpe:/a:amazon:linux:webkitgtk4-jsc-devel, p-cpe:/a:amazon:linux:webkitgtk4-jsc, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:webkitgtk4
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 4/1/2026
Vulnerability Publication Date: 7/29/2025
Reference Information
CVE: CVE-2025-43213, CVE-2025-43214, CVE-2025-43457, CVE-2025-43511, CVE-2026-20608, CVE-2026-20635, CVE-2026-20636, CVE-2026-20644, CVE-2026-20652, CVE-2026-20676