What’s Vulnerable › Vulnerabilities

CVE-2026-56219: Capgo - Unauthenticated RBAC Bindings and Email Disclosure via get_org_user_access_rbac NULL-auth Bypass

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-07-01
• Weakness: CWE-287

Description

Capgo before 12.128.2 contains a NULL-auth bypass vulnerability in the public.get_org_user_access_rbac function that allows unauthenticated attackers to retrieve RBAC role bindings and member email addresses. Attackers can exploit improper NULL comparison in the authorization gate to disclose organization membership, roles, and email addresses via the PostgREST RPC endpoint using only a public API key.

Affected products

• Capgo: before 12.128.2 — fixed in 12.128.2

How to fix

Upgrade to a fixed version: Capgo 12.128.2. Check the vendor advisory for mitigations.

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-vvm7-xhcj-m94h
• https://www.vulncheck.com/advisories/capgo-unauthenticated-rbac-bindings-and-email-disclosure-via-get-org-user-access-rbac-null-auth-bypass
• https://github.com/Cap-go/capgo/security/advisories/GHSA-vvm7-xhcj-m94h

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