CVE-2026-56339
HIGHCapgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-8432-3cgm-vw5j)
https://github.com/Cap-go/capgo/security/advisories/GHSA-8432-3cgm-vw5j
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC
https://www.vulncheck.com/advisories/capgo-unauthenticated-organization-existence-enumeration-via-rescind-invitation-rpc
Scores
CVSS v3
7.5
EPSS
0.0028
EPSS Percentile
19.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-203
Status
published
Products (2)
Cap-go/capgo
< 12.128.2
Cap-go/capgo
12.128.2
Published
Jul 15, 2026
Tracked Since
Jul 15, 2026