{"id":"CVE-2026-62247","state":"PUBLISHED","title":"Supabase Realtime: Incorrect Authorization","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.","publishedAt":"2026-09-21T19:04:58.743Z","updatedAt":"2026-09-22T15:40:12.145Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["supabase realtime"],"affected":[{"vendor":"supabase","product":"realtime","versions":[{"version":"< 2.111.2","status":"affected"}]}],"references":["https://github.com/supabase/realtime/security/advisories/GHSA-rcr8-2525-4r7p","https://github.com/supabase/realtime/pull/1969","https://github.com/supabase/realtime/commit/c039bca9b57c2e554a67fdf462970b54641d82eb","https://github.com/supabase/realtime/releases/tag/v2.111.2"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/62xxx/CVE-2026-62247.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-62247","state":"PUBLISHED","datePublished":"2026-09-21T19:04:58.743Z","dateUpdated":"2026-09-22T15:40:12.145Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-13T17:09:57.573Z"},"containers":{"cna":{"title":"Supabase Realtime: Incorrect Authorization","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"supabase","product":"realtime","versions":[{"version":"< 2.111.2","status":"affected"}]}],"references":[{"url":"https://github.com/supabase/realtime/security/advisories/GHSA-rcr8-2525-4r7p","name":"https://github.com/supabase/realtime/security/advisories/GHSA-rcr8-2525-4r7p","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/supabase/realtime/pull/1969","name":"https://github.com/supabase/realtime/pull/1969","tags":["x_refsource_MISC"]},{"url":"https://github.com/supabase/realtime/commit/c039bca9b57c2e554a67fdf462970b54641d82eb","name":"https://github.com/supabase/realtime/commit/c039bca9b57c2e554a67fdf462970b54641d82eb","tags":["x_refsource_MISC"]},{"url":"https://github.com/supabase/realtime/releases/tag/v2.111.2","name":"https://github.com/supabase/realtime/releases/tag/v2.111.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-21T19:04:58.743Z"},"source":{"advisory":"GHSA-rcr8-2525-4r7p","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T14:12:26.229589Z","id":"CVE-2026-62247","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-22T15:40:12.145Z"}}]}}}