CVE-2026-56249: Capgo

High severity, CVSS 7.6. EPSS: 0.4% chance of exploitation in the next 30 days.

Capgo before 12.128.2 contains an authorization bypass vulnerability in the channel creation endpoint that allows authenticated users to overwrite existing channels by reusing their names. Attackers with app.create_channel permission can exploit a logic mismatch between existence validation and upsert operations to reassign channel ownership and modify critical production channel configurations.

Affected products

• Capgo Capgo: before 12.128.2 (fixed in 12.128.2)

Published 2026-06-30. Last modified 2026-07-01.