Home/CVE/Brave Browser Desktop between versions 1.17 and 1.20 is vulnerable to information disclosure by way of DNS requests in T
CVE

CVE-2021-22917

Brave Browser Desktop between versions 1.17 and 1.20 is vulnerable to information disclosure by way of DNS requests in T

Brave Browser Desktop between versions 1.17 and 1.20 is vulnerable to information disclosure by way of DNS requests in Tor windows not flowing through Tor if adblocking was enabled.

MEDIUM · CVSS 6.5 EPSS 0.00327
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules4 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

1
brave browser> 1.17 and < 1.20
◈

Sigma Hunt Rules

4
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Browser Activity
producthighFile Download with Headless Browser
producthighChromium Browser Headless Execution To Mockbin Like Site
producthighTor Client/Browser Execution
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Jul 2021 · 11:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://hackerone.com/reports/1077022Third Party Advisory
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