Security Advisory
CVE-2026-56309
5.4
MEDIUM
Vulnerability 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.
Published Date
July 10, 2026
Official Source
NIST NVD Advisory