{"id":"CVE-2026-62247","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-62247","generatedAt":"2026-10-28T05:44:35.648Z","title":"Prior to 2.111.2, Realtime authorization does not correctly honor the per-extension presence.read row-level security policy when a private-channel client is allowed presence.write but explicitly denied presence.read.","description":"Supabase Realtime provides Broadcast, Presence, and Postgres Changes via WebSockets. Prior to 2.111.2, Realtime authorization does not correctly honor the per-extension presence.read row-level security policy when a private-channel client is allowed presence.write but explicitly denied presence.read. Under that differential policy, the client can receive presence_diff messages containing other members' presence metadata, including application-defined location, online-status, roster, viewing, or typing information. Deployments with uniform presence visibility have no differential, and postgres_changes row data is unaffected. This issue is fixed in version 2.111.2.","published":"2026-09-21T20:17:27.000Z","lastModified":"2026-09-24T21:25:27.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-863"],"affected":[],"epss":{"score":0.00451,"percentile":0.3905,"date":"2026-10-27","history":[{"date":"2026-09-22","score":0.00321,"percentile":0.25369}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T20:17:27.000Z","detail":{"score":"6.5","severity":"MEDIUM","publishedAt":"2026-09-21T20:17:27.470Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://github.com/supabase/realtime/commit/c039bca9b57c2e554a67fdf462970b54641d82eb","source":"security-advisories@github.com"},{"url":"https://github.com/supabase/realtime/pull/1969","source":"security-advisories@github.com"},{"url":"https://github.com/supabase/realtime/releases/tag/v2.111.2","source":"security-advisories@github.com"},{"url":"https://github.com/supabase/realtime/security/advisories/GHSA-rcr8-2525-4r7p","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-62247","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}