How severe is CVE-2022-30334?

CVE-2022-30334 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2022-30334 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30334?

CVE-2022-30334 affects Brave. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-30334?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-30334 published?

CVE-2022-30334 was published on 2022-05-07 and last updated on 2026-06-17.

CVE-2022-30334

CVE-2022-30334 is a medium-severity vulnerability in Brave with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Brave
Published: 2022-05-07
Last modified: 2026-06-17

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."

Frequently asked questions

What is CVE-2022-30334?: 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."
How severe is CVE-2022-30334?: CVE-2022-30334 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2022-30334 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30334?: CVE-2022-30334 affects Brave. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-30334?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-30334 published?: CVE-2022-30334 was published on 2022-05-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:brave:brave:*:*:*:*:*:*:*:*

More vulnerabilities in Brave

CVE-2021-45884 — High (CVSS 7.5): In Brave Desktop 1.17 through 1.33 before 1.33.106, when CNAME-based adblocking and a proxying extension with a SOCKS…
CVE-2022-47934 — Medium (CVSS 6.5): Brave Browser before 1.43.88 allowed a remote attacker to cause a denial of service in private and guest windows via a…
CVE-2022-47933 — Medium (CVSS 6.5): Brave Browser before 1.42.51 allowed a remote attacker to cause a denial of service via a crafted HTML file that…
CVE-2022-47932 — Medium (CVSS 6.5): Brave Browser before 1.43.34 allowed a remote attacker to cause a denial of service via a crafted HTML file that…
CVE-2018-10799 — Medium (CVSS 6.5): A hang issue was discovered in Brave before 0.14.0 (on, for example, Linux). This vulnerability is caused by the…
CVE-2018-10798 — Medium (CVSS 6.5): A hang issue was discovered in Brave before 0.14.0 (on, for example, Linux). The vulnerability is caused by mishandling…

All CVEs affecting Brave →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →