Medium severity · published May 7, 2022
CVE-2022-30334
Brave before 1.34, when a Private Window with Tor Connectivity is used, leaks .onion URLs in Referer and Origin headers
5.3
CVSS
2.7%
EPSS
No
On KEV
Description
Brave before 1.34, when a Private Window with Tor Connectivity is used, leaks .onion URLs in Referer and Origin headers. NOTE: although this was fixed by Brave, the Brave documentation still advises "Note that Private Windows with Tor Connectivity in Brave are just regular private windows that use Tor as a proxy. Brave does NOT implement most of the privacy protections from Tor Browser."
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BR
Brave · Brave
before 1.34 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-30334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-30334
Issue Tracking
https://github.com/brave/brave-browser/issues/18071
Exploit
https://github.com/brave/brave-core/pull/10760
Exploit
https://hackerone.com/reports/1337624
Vendor Advisory
https://support.brave.com/hc/en-us/articles/360018121491-What-is-a-Private-Window-with-Tor-Connectivity-
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