The Stable channel has been updated to 121.0.6167.139 for Mac and Linux and
121.0.6167.139/140 to Windows which will roll out over the coming days/weeks. A
full list of changes in this build is available in the log.

Security Fixes and Rewards

Note: Access to bug details and links may be kept restricted until a majority
of users are updated with a fix. We will also retain restrictions if the bug
exists in a third party library that other projects similarly depend on, but
haven’t yet fixed.
This update includes 4 security fixes. Below, we highlight fixes that were
contributed by external researchers. Please see the Chrome Security Page for
more information.

[$5000][1511567] High CVE-2024-1060: Use after free in Canvas. Reported by
Anonymous on 2023-12-14
[$3000][1514777] High CVE-2024-1059: Use after free in WebRTC. Reported by
Cassidy Kim(@cassidy6564) on 2023-12-29
[N/A][1511085] High CVE-2024-1077: Use after free in Network. Reported by
Microsoft Security Research Center on 2023-12-13

We would also like to thank all security researchers that worked with us during
the development cycle to prevent security bugs from ever reaching the stable
channel.
As usual, our ongoing internal security work was responsible for a wide range
of fixes:[1523290] Various fixes from internal audits, fuzzing and other
initiatives

Many of our security bugs are detected using AddressSanitizer, MemorySanitizer,
UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzze