Capgo - Unauthenticated RBAC Bindings and Email Disclosure via get_org_user_access_rbac NULL-auth Bypass
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Capgo (Capgo) Fixed in 12.128.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Capgo 12.128.2
15 records Highest priority Priority HIGH 8 HIGH, 6 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-40665 Capgo - Unauthenticated API Key Validity and Permission Oracle via RPC FunctionsPriority HIGH 77
- TI-2026-40612 Capgo - Privilege Escalation via Cross-Scope RBAC Role AssignmentPriority HIGH 73
- TI-2026-40598 Capgo - SSRF and Privilege Escalation via Path Traversal in Builder Upload ProxyPriority HIGH 71
Timeline
- 2026-10-02 Threatist record created from CVE-2026-56219
- 2026-10-03 Alias added: GHSA-f484-qgwx-c6gr
References
More Capgo vulnerabilities
- TI-2026-40602 Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation CVSS 4.0CRITICAL 9.3
- TI-2026-40473 Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email CVSS 4.0CRITICAL 9.3
- TI-2026-40465 Cap-go - OTP Bypass via Response Manipulation in Email Verification CVSS 4.0CRITICAL 9.3
- TI-2026-64782 capgo.app through 12.129.0 Cache Restoration of Deleted Bundles CVSS 4.0HIGH 8.7
- TI-2026-40704 Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC CVSS 4.0HIGH 8.7
- TI-2026-40689 Capgo - Rate Limit Bypass via User-Controlled device_id Parameter CVSS 4.0HIGH 8.8
Sources
- CVE-2026-56219 · CVE Program
- CVE-2026-56219 · NVD
- FIRST EPSS
- GHSA-f484-qgwx-c6gr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences