CVE-2022-47934 — Brave Browser before 1

Brave Browser before 1.43.88 allowed a remote attacker to cause a denial of service in private and guest windows via a crafted HTML file that mentions an ipfs:// or ipns:// URL. This is caused by an incomplete fix for CVE-2022-47932 and CVE-2022-47934.

01What is this vulnerability?

Brave Browser before 1.43.88 allowed a remote attacker to cause a denial of service in private and guest windows via a crafted HTML file that mentions an ipfs:// or ipns:// URL. This is caused by an incomplete fix for CVE-2022-47932 and CVE-2022-47934.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2022-12-24T00:00:00.000Z
• Last modified: 2025-04-15T13:34:56.137Z

09References

• github.com — https://github.com/brave/brave-core/commit/82d8e39043e691e0492519126437275511ee8…
• github.com — https://github.com/brave/brave-browser/issues/24211
• github.com — https://github.com/brave/brave-browser/issues/25106
• github.com — https://github.com/brave/brave-core/pull/14313
• hackerone.com — https://hackerone.com/reports/1646204