CVE-2025-48980

Published Oct 30, 2025 CVSS 3.0 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
In Brave Browser Desktop versions prior to 1.83.10 that have the split view feature enabled, the "Open Link in Split View" context menu item did not respect the SameSite cookie attribute. Therefore SameSite=Strict cookies would be sent on a cross-site navigation using this method.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
References
History
Type Values Removed Values Added
Weaknesses CWE-565
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Brave
Brave brave
Brave brave Browser
Brave browser
Vendors & Products Brave
Brave brave
Brave brave Browser
Brave browser
Type Values Removed Values Added
Description In Brave Browser Desktop versions prior to 1.83.10 that have the split view feature enabled, the "Open Link in Split View" context menu item did not respect the SameSite cookie attribute. Therefore SameSite=Strict cookies would be sent on a cross-site navigation using this method.
References
Metrics cvssV3_0

{'score': 6.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Dec 1, 2025, 8:22 PM
Reserved
May 29, 2025, 3:00 PM
Status
Deferred
Published
Oct 31, 2025, 12:15 AM
Modified
Oct 7, 2026, 9:10 PM