CVE-2026-56323: Capgo

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Capgo before 12.128.2 contains an information disclosure vulnerability in the /functions/v1/channel_self endpoint that allows unauthenticated attackers to enumerate non-public channel names and determine app existence and subscription status. Remote attackers can send GET requests with arbitrary app_id parameters to disclose internal rollout channels, enumerate valid applications across tenants, and leak billing status without authentication or device binding.

Affected products

• Capgo Capgo: before 12.128.2 (fixed in 12.128.2)

Published 2026-06-22. Last modified 2026-06-23.