Should you update to Brave 1.99.55?
Yes, this week. Brave 1.99.55 is a security update Brave released on 4 Nov 2026 for Mac, Windows and Linux. It fixes 213 security flaws, 7 rated critical and 77 high by Brave.[1] None of them is known to be used in attacks.
It is the newest Brave release, so it’s the one to have.
Should you update?
Yes, this week. Brave rates 7 fixes critical, and attackers study each release to work out what it fixed. Every security update closes holes that become public the moment it ships, so the risk of staying on the old version only grows. Waiting a week to see if others hit problems is a common habit; with a security update it’s the wrong trade.
Is Brave 1.99.55 safe to install?
Yes. It’s Brave’s own security release, and updates rarely go wrong; a backup makes it painless if one does. The one unsafe way to get it is from a link: Brave never sends updates by email, text or pop-up, so install it only from Brave’s own About Brave page.
What it fixes
Brave lists 213 security flaws, 7 rated critical and 77 high by Brave.[1] The 84 critical and high ones are:
| Flaw | Severity | What Brave calls it |
|---|---|---|
CVE-2026-121156 | Critical | Buffer overflow in Dawn |
CVE-2026-121229 | Critical | Memory corruption in ANGLE |
CVE-2026-121246 | Critical | Use after free in WebGL |
CVE-2026-121035 | Critical | Use after free in Prerender |
CVE-2026-121247 | Critical | Buffer overflow in Dawn |
CVE-2026-121203 | Critical | Use after free in Geometry |
CVE-2026-121126 | Critical | Use after free in Core |
CVE-2026-121107 | High | Incorrect authorization in BackgroundFetch |
CVE-2026-121197 | High | Out of bounds read in ANGLE |
CVE-2026-121112 | High | Out of bounds read in Permissions |
CVE-2026-121174 | High | Missing authorization in BackgroundFetch |
CVE-2026-121098 | High | Improper state validation in GPU |
CVE-2026-121074 | High | Memory corruption in GPU |
CVE-2026-121173 | High | Uninitialized resource in WebGL |
CVE-2026-121233 | High | Type confusion in CacheStorage |
CVE-2026-121140 | High | Out of bounds read in Internals |
CVE-2026-121095 | High | Uninitialized resource in WebGL |
CVE-2026-121071 | High | Incorrect authorization in FileSystem |
CVE-2026-121207 | High | Uninitialized resource in Dawn |
CVE-2026-121185 | High | Use after free in PictureInPicture |
CVE-2026-121166 | High | Type confusion in PDFium |
CVE-2026-121047 | High | Buffer overflow in Media |
CVE-2026-121124 | High | Improper adherence to coding standards in XML |
CVE-2026-121118 | High | Use after free in SVG |
CVE-2026-121188 | High | Use after free in PerformanceAPIs |
CVE-2026-121113 | High | Buffer overflow in PDFium |
CVE-2026-121082 | High | Type confusion in V8 |
CVE-2026-121083 | High | Use after free in Compositing |
CVE-2026-121179 | High | Use after free in PDFium |
CVE-2026-121180 | High | Buffer overflow in Media |
| and 54 more | ||
How to update, and how long it takes
A minute or two. Brave restarts and reopens your tabs.
- Open Brave and click the ☰ menu at the top right.Choose About Brave. Brave looks for the update and downloads it by itself.
- Click Relaunch.Brave closes and opens again with the same tabs.
To check it worked: ☰ menu → About Brave: it shows the version, like 1.84.135, and the Chromium it’s built on. It should say 1.99.55 or later.
1.98.63 vs 1.99.55
Brave 1.98.63, released 30 Oct 2026, fixed 21 security flaws. Brave 1.99.55 fixes 213 security flaws and includes the fixes before it, so going straight to 1.99.55 gets you both.
- Before: Brave 1.98.63, 30 Oct 2026, 21 security flaws
- After: none yet. This is the newest.
- Brave updates, every release and the latest version
- Updates, the latest version of everything HARD tracks
References
- ^ Brave. “Brave Release v1.99.55 (Chromium 157.0.8103.39)”, 4 Nov 2026.