CVE-2021-21323

Published: 2021-02-23T23:15Z

Last Modified: 2024-11-21T05:48Z

Source: MITRE CVE List

License: MITRE-CVE-TOS

Brave is an open source web browser with a focus on privacy and security. In Brave versions 1.17.73-1.20.103, the CNAME adblocking feature added in Brave 1.17.73 accidentally initiated DNS requests that bypassed the Brave Tor proxy. Users with adblocking enabled would leak DNS requests from Tor windows to their DNS provider. (DNS requests that were not initiated by CNAME adblocking would go through Tor as expected.) This is fixed in Brave version 1.20.108 > MITRE Terms of Use apply – see LICENSE‑MITRE.txt