{"api_version":"1","generated_at":"2026-09-11T00:07:27+00:00","cve":"CVE-2026-88861","urls":{"html":"https://cve.report/CVE-2026-88861","api":"https://cve.report/api/cve/CVE-2026-88861.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-88861","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-88861"},"summary":{"title":"Capgo AAL1 Session MFA Bypass via Direct RBAC Authorization","description":"Capgo (Cap-go/capgo.app) contains an authentication bypass affecting all versions (no patched version available at time of publication). 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An attacker who knows only the victim's password can therefore authenticate, mint a persistent app-scoped app_admin API key that remains valid after the aal1 session is logged out, and perform privileged operations such as modifying production OTA channel configurations (validated by changing a public production channel from bundle 1.0.0 to 1.0.1), defeating the protection provided by MFA.","state":"PUBLISHED","assigner":"VulnCheck","published_at":"2026-09-10 14:17:11","updated_at":"2026-09-10 15:13:07"},"problem_types":["CWE-288","CWE-288 Authentication Bypass Using an Alternate Path or 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AAL1 Session MFA Bypass via Direct RBAC Authorization","CVE":"CVE-2026-88861","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"88861","Ordinal":"1","NoteData":"Capgo (Cap-go/capgo.app) contains an authentication bypass affecting all versions (no patched version available at time of publication). The Edge authorization path allows a password-only Supabase aal1 session to exercise privileged RBAC permissions even when the account has a verified MFA factor that has not been used for the session: the Edge JWT middleware (foundJWT() in supabase/functions/_backend/utils/hono_middleware.ts) accepts the JWT without validating its assurance level, and the direct RBAC path (checkPermission()/checkPermissionPg() in supabase/functions/_backend/utils/rbac.ts calling public.rbac_check_permission_direct()) authorizes by user ID without passing or checking the session aal, unlike the public.verify_mfa() control which correctly requires aal2. 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