CVE-2026-56337 Capgo - Information Disclosure via Unauthenticated RPC Function exist_app_v2
Unauthenticated attackers can enumerate application IDs via an exposed RPC function, leading to cross-tenant data exposure and privacy violations.
- 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-2026-56337?
CVE-2026-56337 is a medium-severity vulnerability in Capgo, published on 24 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 information disclosure vulnerability in the public.exist_app_v2 RPC function that allows unauthenticated attackers to enumerate app_ids by calling POST /rest/v1/rpc/exist_app_v2 with arbitrary appid parameters. Remote attackers can exploit this SECURITY DEFINER function to determine whether specific app_ids exist in the public.apps table, enabling cross-tenant app enumeration and privacy violations.
Weakness: CWE-200
Which versions are affected by CVE-2026-56337?
How do I fix CVE-2026-56337?
No fix has been published for CVE-2026-56337 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56337 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56337 exists.
Sources
Also known as GHSA-wjqr-gmx8-jj56.