Description
In Brave Desktop 1.17 through 1.33 before 1.33.106, when CNAME-based adblocking and a proxying extension with a SOCKS fallback are enabled, additional DNS requests are issued outside of the proxying extension using the system's DNS settings, resulting in information disclosure. NOTE: this issue exists because of an incomplete fix for CVE-2021-21323 and CVE-2021-22916.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://github.com/brave/brave-browser/issues/19070Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/brave/brave-browser/issues/20079Issue Tracking, Release Notes, Third Party Advisory
- https://github.com/brave/brave-core/pull/10742Patch, Third Party Advisory
- https://hackerone.com/reports/1377864Permissions Required
- https://github.com/brave/brave-browser/issues/19070Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/brave/brave-browser/issues/20079Issue Tracking, Release Notes, Third Party Advisory
- https://github.com/brave/brave-core/pull/10742Patch, Third Party Advisory
- https://hackerone.com/reports/1377864Permissions Required
Timeline
- Published
- Dec 27, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified