CVE-2026-56226 | Capgo (Cap-go/capgo) before 12.128.2 exposes the Supabase Po… | CVSS 7.5 HIGH

Description

Capgo (Cap-go/capgo) before 12.128.2 exposes the Supabase PostgREST RPC function public.get_orgs_v6(userid uuid), which is SECURITY DEFINER and granted to the anon role, allowing unauthenticated access. Because the function accepts a caller-supplied user UUID without verifying it matches the authenticated user, an attacker using only the public publishable API key can query POST /rest/v1/rpc/get_orgs_v6 with an arbitrary user UUID to retrieve that user's organization membership, roles, subscription/trial metadata, and management_email (PII).

Metadata

CVE ID: CVE-2026-56226
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-19 21:46 UTC
Published: 2026-07-08 13:48 UTC
Last updated: 2026-07-08 15:50 UTC
Primary CWE: CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
Vendor / Product: Cap-go / capgo
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Cap-go	capgo	—	0 < 12.128.2, 12.128.2

Weakness (CWE)

CWE	Source	Description
CWE-200	cna	Exposure of Sensitive Information to an Unauthorized Actor

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.7	HIGH	4.0	cna	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
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References (2)

GitHub Security Advisory (GHSA-m7mm-35v3-82f4) https://github.com/Cap-go/capgo/security/advisories/GHSA-m7mm-35v3-82f4
VulnCheck Advisory: Capgo - Unauthenticated Organization Data Disclosure via get_orgs_v6 RPC https://www.vulncheck.com/advisories/capgo-unauthenticated-organization-data-disclosure-via-get-orgs-v6-rpc