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TI-2021-05777 Aliases CVE-2021-22916GHSA-x7j4-9cp2-wmh8

Information disclosure in https://github.com/brave/brave-core

Priority LOW 32CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

In Brave Desktop between versions 1.17 and 1.26.60, when adblocking is enabled and a proxy browser extension is installed, the CNAME adblocking feature issues DNS requests that used the system DNS settings instead of the extension's proxy settings, resulting in possible information disclosure.

Why it matters now

EPSS 0.02993 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—https://github.com/brave/brave-coreFixed in 1.26.60—No fix listedCNA
  • https://github.com/brave/brave-core Vendor— Affected Fixed in 1.26.60 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:brave:brave:*:*:*:*:*:*:*:*1.17.0 – 1.26.60VulnerableBrave
  • cpe:2.3:a:brave:brave:*:*:*:*:*:*:*:* Versions 1.17.0 – 1.26.60 Vulnerable ·Brave

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-22916
  2. 2026-10-03 Alias added: GHSA-x7j4-9cp2-wmh8

References

Advisory 1

  • TI-2022-23748 Brave Browser before 1.43.88 allowed a remote attacker to cause a denial of service in… CVSS 3.1MEDIUM 6.5
  • TI-2022-23747 Brave Browser before 1.42.51 allowed a remote attacker to cause a denial of service via a… CVSS 3.1MEDIUM 6.5
  • TI-2017-05997 Brave 0.12.4 has a Status Bar Obfuscation issue in which a redirection target is shown in… CVSS 3.1MEDIUM 5.3
  • TI-2021-20894 In Brave Desktop 1.17 through 1.33 before 1.33.106, when CNAME-based adblocking and a… CVSS 3.1HIGH 7.5
  • TI-2022-23746 Brave Browser before 1.43.34 allowed a remote attacker to cause a denial of service via a… CVSS 3.1MEDIUM 6.5
  • TI-2017-05996 Brave 0.12.4 has a URI Obfuscation issue in which a string such as… CVSS 3.0MEDIUM 6.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences