CVE-2026-56339CWE-203

Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC

High · published July 15, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
38.8
In the wild
Unconfirmed
What it is

Capgo (Cap-go/capgo) before 12.128.2 contains an information disclosure vulnerability in the Supabase PostgREST SECURITY DEFINER RPC function public.rescind_invitation that allows unauthenticated attackers to enumerate organization existence. The function returns distinct error messages (NO_ORG vs NO_RIGHTS) when called with only a publishable API key, enabling attackers to discover valid organization IDs and increase the attack surface for targeted phishing or social engineering campaigns.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00459 · 38.8th percentile
Weakness
CWE-203 · Observable Discrepancy
Published
2026-07-15T11:25Z
EPSS history
Timeline
  • 15 JUL 11:25Z
    Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC
    cvelistv5