Vulnerability · Published Jun 21, 2026 · Assigned by VulnCheck

CVE-2026-56253Capgo - Unauthenticated Organization Member Email Disclosure via get_org_members RPC

High 7.5

In plain English

A high-severity improper access control in Capgo from Capgo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.4%top 63.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Capgo before 12.128.2 contains an improper access control vulnerability in the public.get_org_members RPC function that allows unauthenticated attackers to enumerate organization members. Attackers can invoke the endpoint using only the public sb_publishable_* key and an organization UUID to retrieve sensitive member information including email addresses, user IDs, roles, and pending invitations.

Affected products (as reported)

Vendor	Product	Versions
Capgo	Capgo	0 – before 12.128.2

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

GHSA Advisory GHSA-x34h-gc65-f6g4 vendor-advisory
VulnCheck Advisory: Capgo - Unauthenticated Organization Member Email Disclosure via get_org_members RPC third-party-advisory