CVE-2026-56309
MEDIUM
NVD
CVSS Score
5.4
Severity
MEDIUM
Published
Jul 10, 2026
Vendor
unknown
Description
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.