Описание
A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
A flaw was found in WebKitGTK. Processing malicious web content may prevent Content Security Policy from being enforced due to a validation issue with improper logic.
Отчет
To exploit this flaw, an attacker needs to trick a user into processing or loading malicious web content. Due to this reason, this flaw has been rated with a moderate severity.
Меры по смягчению последствий
Do not process or load untrusted web content with WebKitGTK. In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi and yelp. This vulnerability can only be exploited when these packages are installed in the system and being used via a graphical interface to process untrusted web content, via GNOME for example. In gnome-shell, the vulnerability can be exploited by an attacker from the local network without user interaction. To mitigate this vulnerability, consider removing these packages. Note that some of these packages are required by GNOME, removing them will also remove GNOME and other packages, breaking functionality. However, the server can still be used via the terminal interface. Additionally, WebKitGTK3 is not required by any package. Therefore, it can be removed without consequences or break of functionality.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | webkitgtk | Out of support scope | ||
| Red Hat Enterprise Linux 7 | webkitgtk3 | Not affected | ||
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | webkitgtk4 | Fixed | RHSA-2026:27728 | 22.06.2026 |
| Red Hat Enterprise Linux 8 | webkit2gtk3 | Fixed | RHSA-2026:25918 | 15.06.2026 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | webkit2gtk3 | Fixed | RHSA-2026:27785 | 22.06.2026 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | webkit2gtk3 | Fixed | RHSA-2026:27785 | 22.06.2026 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | webkit2gtk3 | Fixed | RHSA-2026:28114 | 23.06.2026 |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | webkit2gtk3 | Fixed | RHSA-2026:28114 | 23.06.2026 |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | webkit2gtk3 | Fixed | RHSA-2026:27804 | 22.06.2026 |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | webkit2gtk3 | Fixed | RHSA-2026:27804 | 22.06.2026 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
A validation issue was addressed with improved logic. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
EPSS
6.5 Medium
CVSS3