Summary
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.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | webkit2gtk3 | 2.52.3-0.el9_7.1 |
| AlmaLinux · 9 | webkit2gtk3-devel | 2.52.3-0.el9_7.1 |
| AlmaLinux · 9 | webkit2gtk3-jsc | 2.52.3-0.el9_7.1 |
| AlmaLinux · 9 | webkit2gtk3-jsc-devel | 2.52.3-0.el9_7.1 |
Vulnerabilities 18
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5…
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Medium 6.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, ma…
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Medium 6.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, ma…
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Medium 6.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and …
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Medium 6.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.2 an…
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Medium 6.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, ma…
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Medium 6.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5…
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Medium 6.5
This issue was addressed through improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 1…
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Medium 6.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, ma…
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Medium 5.5
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 1…
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Medium 5.4CVE-2026-20643 Public exploit
A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Backgro…
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Medium 4.3
A memory initialization issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 26.2…
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Medium 4.3
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5…
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Medium 4.3
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, ma…
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Medium 4.3
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.…
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Medium 4.3
An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 26.4 and i…
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Medium 4.3
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, ma…
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Medium 4.3
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…
References
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report
https://access.redhat.com/security/cve/CVE-2025-43213
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report
https://access.redhat.com/security/cve/CVE-2025-43214
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report
https://access.redhat.com/security/cve/CVE-2025-43457
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report
https://access.redhat.com/security/cve/CVE-2025-43511
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report
https://access.redhat.com/security/cve/CVE-2025-46299
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report
https://access.redhat.com/security/cve/CVE-2026-20608
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report
https://access.redhat.com/security/cve/CVE-2026-20635
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report
https://access.redhat.com/security/cve/CVE-2026-20636
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report
https://access.redhat.com/security/cve/CVE-2026-20643
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report
https://access.redhat.com/security/cve/CVE-2026-20644
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report
https://access.redhat.com/security/cve/CVE-2026-20652
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report
https://access.redhat.com/security/cve/CVE-2026-20664
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report
https://access.redhat.com/security/cve/CVE-2026-20665
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report
https://access.redhat.com/security/cve/CVE-2026-20676
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report
https://access.redhat.com/security/cve/CVE-2026-20691
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report
https://access.redhat.com/security/cve/CVE-2026-28857
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report
https://access.redhat.com/security/cve/CVE-2026-28859
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report
https://access.redhat.com/security/cve/CVE-2026-28871
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report
https://bugzilla.redhat.com/2448781
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report
https://bugzilla.redhat.com/2448782
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report
https://bugzilla.redhat.com/2448786
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report
https://bugzilla.redhat.com/2448787
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report
https://bugzilla.redhat.com/2448788
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report
https://bugzilla.redhat.com/2448789
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report
https://bugzilla.redhat.com/2448790
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report
https://bugzilla.redhat.com/2448791
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report
https://bugzilla.redhat.com/2448792
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report
https://bugzilla.redhat.com/2448793
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report
https://bugzilla.redhat.com/2448794
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report
https://bugzilla.redhat.com/2453000
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report
https://bugzilla.redhat.com/2453001
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report
https://bugzilla.redhat.com/2453002
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report
https://bugzilla.redhat.com/2453003
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report
https://bugzilla.redhat.com/2453004
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report
https://bugzilla.redhat.com/2453006
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report
https://bugzilla.redhat.com/2453008
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advisory
https://errata.almalinux.org/9/ALSA-2026-9692.html