[Security Vulnerability Alert] Chromium-based browsers contain 79 high-risk security vulnerabilities. Please identify and patch them as soon as possible.

 
2026/5/22 ～ 2026/11/22
View Count：236

Forwarded from the National Cybersecurity Information Sharing and Analysis Center: Cybersecurity Alert NISAC-200-202605-00000009

[Content Description]
Researchers have discovered 79 high-risk security vulnerabilities (CVE-2026-8509 to CVE-2026-8587) in Chromium-based browsers such as Google Chrome, Microsoft Edge, Vivaldi, and Brave. These vulnerabilities include Use After Free and Heap-based Buffer Overflow, among others. In the most severe cases, unauthenticated remote attackers could trick users into opening specially crafted HTML pages, thereby escaping the browser's sandbox environment. Please confirm and patch these vulnerabilities as soon as possible.

[Affected Platforms]
● Google Chrome versions prior to 148.0.7778.167
● Microsoft Edge versions prior to 148.0.3967.70
● Vivaldi versions prior to 7.9.3970.67
● Brave versions prior to 1.90.122

[Recommended Measures]
1. Please update your Google Chrome browser to version 148.0.7778.167 or later.
https://support.google.com/chrome/answer/95414?hl=zh-Hant

2. Please update your Microsoft Edge browser to version 148.0.3967.70 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 7.9.3970.67 or later.
https://help.vivaldi.com/desktop/install-update/update-vivaldi/

4. Please update Brave browser to version 1.90122 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://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
6. https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-8509
7. https://vivaldi.com/blog/desktop/minor-update-nine-7-10/
8. https://brave.com/latest/

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