The Stable channel has been updated to 92.0.4515.131 for Windows, Mac and Linux which will roll out over the coming days/weeks

A full list of changes in this build is available in the log. Interested in switching release channels?  Find out how here. If you find a new issue, please let us know by filing a bug. The community help forum is also a great place to reach out for help or learn about common issues.

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 10 security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the Chrome Security Page for more information.


[$20000][1227777] High CVE-2021-30590: Heap buffer overflow in Bookmarks. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-07-09

[$20000][1229298] High CVE-2021-30591: Use after free in File System API. Reported by SorryMybad (@S0rryMybad) of Kunlun Lab on 2021-07-14

[$10000][1209469] High CVE-2021-30592: Out of bounds write in Tab Groups. Reported by David Erceg on 2021-05-15

[$5000][1209616] High CVE-2021-30593: Out of bounds read in Tab Strip. Reported by David Erceg on 2021-05-16

[$N/A][1218468] High CVE-2021-30594: Use after free in Page Info UI. Reported by raven (@raid_akame)  on 2021-06-10

[$1000][1214481] Medium CVE-2021-30596: Incorrect security UI in Navigation. Reported by Mohit Raj (shadow2639)  on 2021-05-29

[$TBD][1232617] Medium CVE-2021-30597: Use after free in Browser UI. Reported by raven (@raid_akame)  on 2021-07-24


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:

  • [1229408] Various fixes from internal audits, fuzzing and other initiatives


Many of our security bugs are detected using AddressSanitizer, MemorySanitizer, UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzzer, or AFL.




Srinivas Sista
Google Chrome