CVE-2026-56337

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.

CVSS Vector

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-wjqr-gmx8-jj56
• https://www.vulncheck.com/advisories/capgo-information-disclosure-via-unauthenticated-rpc-function-exist-app-v2
• https://github.com/Cap-go/capgo/security/advisories/GHSA-wjqr-gmx8-jj56