CVE-2025-48980: Brave Desktop Browser

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Brave Desktop Browser: before 1.83.10 (fixed in 1.83.10)

Published 2025-10-31. Last modified 2026-10-07.