CVE-2026-56311 Capgo - Unauthenticated Cross-Tenant Disclosure via get_current_plan_max_org RPC
Unauthenticated attackers can retrieve arbitrary organization billing and plan limits via an exposed RPC endpoint in Capgo.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56311?
CVE-2026-56311 is a medium-severity missing authorization vulnerability in Capgo, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Capgo before 12.128.2 contains an authorization bypass vulnerability in the public.get_current_plan_max_org RPC function that allows unauthenticated attackers to retrieve arbitrary organization plan limits. Attackers can call the RPC endpoint with any organization UUID using only the public Supabase key to disclose billing information including MAU, bandwidth, storage, and build time limits for any organization.
Weakness: CWE-285
Which versions are affected by CVE-2026-56311?
How do I fix CVE-2026-56311?
No fix has been published for CVE-2026-56311 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56311 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56311 exists.
Sources
Also known as GHSA-v3jp-r95g-x4mm.