Forwarded from National Cybersecurity Information Sharing and Analysis Center: Cybersecurity Alert NISAC-200-202604-00000008
[Content Description]
Researchers have discovered 60 high-risk security vulnerabilities (CVE-2026-5858 to CVE-2026-5915, CVE-2026-5918, and CVE-2026-5919) in Chromium-based browsers such as Google Chrome, Microsoft Edge, Vivaldi, and Brave. These vulnerabilities include heap-based buffer overflows and use-after-free vulnerabilities. In the most severe cases, unauthenticated remote attackers could use specially crafted HTML pages to cause memory corruption or execute arbitrary code. Please confirm and patch these vulnerabilities as soon as possible.
[Affected Platforms]
Google Chrome versions prior to 147.0.7727.55
Microsoft Edge versions prior to 147.0.3912.60
Vivaldi versions prior to 7.9.3970.50
Brave versions prior to 1.89.132
[Recommended Measures]
1. Please update Google Chrome to version 147.0.7727.55 or later. https://support.google.com/chrome/answer/95414?hl=zh-Hant
2. Please update Microsoft Edge to version 147.0.3912.60 or later. https://support.microsoft.com/zh-tw/topic/microsoft-edge-%E6%9B%B4%E6%96%B0%E8%A8%AD%E5%AE%9A-af8aaca2-1b69-4870-94fe-18822dbb7ef1
3. Please update Vivaldi browser to version 7.9.3970.50 or later. https://help.vivaldi.com/desktop/install-update/update-vivaldi/
4. Please update Brave browser to version 1.89132 or later. https://community.brave.com/t/how-to-update-brave/384780
[References]
1. https://support.google.com/chrome/answer/95414?hl=zh-Hant
2. https://support.microsoft.com/zh-tw/topic/microsoft-edge-%E6%9B%B4%E6%96%B0%E8%A8%AD%E5%AE%9A-af8aaca2-1b69-4870-94fe-18822dbb7ef1
3. https://help.vivaldi.com/desktop/install-update/update-vivaldi/
4. https://community.brave.com/t/how-to-update-brave/384780
5. https://help.opera.com/en/latest/crashes-and-issues/#updateBrowser
6. https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
7. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-5919
8. https://vivaldi.com/blog/desktop/desktop-updates/minor-update-five-7-9/
9. https://brave.com/latest/