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CVE-2022-30334

5.3 · MEDIUM

Brave before 1.34, when a Private Window with Tor Connectivity is used, leaks .onion URLs in Referer and Origin headers.

Published May 7, 2022CWE-200EPSS 2.68%

Overview

CVE-2022-30334 is a medium-severity vulnerability. It was published on May 7, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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."

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/brave/brave-browser/issues/18071GitHubgithub.com/brave/brave-core/pull/10760Refhackerone.com/reports/1337624Refsupport.brave.com/hc/en-us/articles/360018121491-What-is-a-Private-Window-with-Tor-Connectivity-GitHubgithub.com/brave/brave-browser/issues/18071GitHubgithub.com/brave/brave-core/pull/10760Refhackerone.com/reports/1337624Refsupport.brave.com/hc/en-us/articles/360018121491-What-is-a-Private-Window-with-Tor-Connectivity-

How CyberStrike helps

Frequently asked questions

What is CVE-2022-30334?

CVE-2022-30334 is a medium-severity vulnerability. It was published on May 7, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2022-30334?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-30334?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-30334?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-30334 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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