CVE-2026-56307: Cap-Go Capgo

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Cap-go before 12.128.12 contains a broken cursor pagination vulnerability in the /private/devices endpoint on the Cloudflare/workerd path that allows authenticated attackers to cause duplicate-page loops and make later rows unreachable. Attackers with app.read_devices access can exploit non-advancing cursor filters to trigger infinite pagination loops, prevent dataset traversal, and cause repeated processing in device-management workflows.

Affected products

• Cap-Go Capgo: before 12.128.12 (fixed in 12.128.12)

Published 2026-06-20. Last modified 2026-06-22.