RHSA-2026:16056 - Security Advisory

标题

An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

描述

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

Security Fix(es):

• webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2025-43213)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2025-43214)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2025-43457)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2025-43511)
• webkitgtk: Processing maliciously crafted web content may disclose internal states of the app (CVE-2025-46299)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-20608)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-20635)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-20636)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-20644)
• webkitgtk: A remote attacker may be able to cause a denial-of-service (CVE-2026-20652)
• webkitgtk: A website may be able to track users through Safari web extensions (CVE-2026-20676)
• webkitgtk: Processing maliciously crafted web content may bypass Same Origin Policy (CVE-2026-20643)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-20664)
• webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced (CVE-2026-20665)
• webkitgtk: A maliciously crafted webpage may be able to fingerprint the user (CVE-2026-20691)
• webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-28857)
• webkitgtk: A malicious website may be able to process restricted web content outside the sandbox (CVE-2026-28859)
• webkitgtk: Visiting a maliciously crafted website may lead to a cross-site scripting attack (CVE-2026-28871)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

解决方案

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

受影响的产品

• Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64

修复

• BZ - 2448781 - CVE-2025-43213 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
• BZ - 2448782 - CVE-2025-43214 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
• BZ - 2448786 - CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
• BZ - 2448787 - CVE-2025-43511 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2448788 - CVE-2025-46299 webkitgtk: Processing maliciously crafted web content may disclose internal states of the app
• BZ - 2448789 - CVE-2026-20608 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2448790 - CVE-2026-20635 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2448791 - CVE-2026-20636 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2448792 - CVE-2026-20644 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2448793 - CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service
• BZ - 2448794 - CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions
• BZ - 2453000 - CVE-2026-20643 webkitgtk: Processing maliciously crafted web content may bypass Same Origin Policy
• BZ - 2453001 - CVE-2026-20664 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2453002 - CVE-2026-20665 webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
• BZ - 2453003 - CVE-2026-20691 webkitgtk: A maliciously crafted webpage may be able to fingerprint the user
• BZ - 2453004 - CVE-2026-28857 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
• BZ - 2453006 - CVE-2026-28859 webkitgtk: A malicious website may be able to process restricted web content outside the sandbox
• BZ - 2453008 - CVE-2026-28871 webkitgtk: Visiting a maliciously crafted website may lead to a cross-site scripting attack

CVE

• CVE-2025-43213
• CVE-2025-43214
• CVE-2025-43457
• CVE-2025-43511
• CVE-2025-46299
• CVE-2026-20608
• CVE-2026-20635
• CVE-2026-20636
• CVE-2026-20643
• CVE-2026-20644
• CVE-2026-20652
• CVE-2026-20664
• CVE-2026-20665
• CVE-2026-20676
• CVE-2026-20691
• CVE-2026-28857
• CVE-2026-28859
• CVE-2026-28871

参考

• https://access.redhat.com/security/updates/classification/#important