CVE-2026-56309: Capgo

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Capgo before 12.128.2 fails to enforce plan/quota restrictions on the /files/upload/attachments endpoint, allowing plan-blocked apps to create publicly readable R2 objects. Attackers can upload arbitrary attachments using upload-scoped API keys that bypass plan checks, persist outside normal bundle metadata, and survive app deletion, enabling storage and bandwidth abuse.

Affected products

• Capgo Capgo: before 12.128.2 (fixed in 12.128.2)

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