{"id":20644,"date":"2026-09-11T00:32:12","date_gmt":"2026-09-10T16:32:12","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-88864"},"modified":"2026-09-11T00:32:12","modified_gmt":"2026-09-10T16:32:12","slug":"cve-2026-88864","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-88864","title":{"rendered":"CVE-2026-88864 [CRITICAL] &#8211; Capgo (capgo.app) fails to restrict direct write access to the public.sso_providers table"},"content":{"rendered":"<p>Capgo (capgo.app) fails to restrict direct write access to the public.sso_providers table exposed through Supabase PostgREST. A holder of an ordinary Capgo full API key can insert a row with status=&#8217;active&#8217; and enforce_sso=true, bypassing the intended backend SSO provisioning route (supabase\/functions\/_backend\/private\/sso\/providers.ts) and its controls: the Enterprise plan requirement, SSO provider creation via the Supabase Management API, DNS TXT domain-ownership verification, the pending_verification \u2192 verified \u2192 active status transition, and issuance of a trusted provider ID by Supabase Auth. The forged row is trusted by SSO discovery and enforcement logic, including the unauthenticated login preflight endpoint \/private\/sso\/check-domain, which then reports {&#8220;has_sso&#8221;: true, &#8220;enforce_sso&#8221;: true} for domains that were never verified, allowing attacker-controlled SSO enforcement to be asserted for arbitrary domains and disrupting normal login. All versions are affected; at the time of the advisory no patch was available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Capgo (capgo.app) fails to restrict direct write access to the public.sso_providers table exposed through Supabase PostgREST. A holder of an ordinary Capgo full API key can insert a row with status=&#8217;a<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-20644","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/20644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}