CVE-2026-62247

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{"affected": [{"affectedData": [{"product": "realtime", "vendor": "supabase", "versions": [{"status": "affected", "version": "< 2.111.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-62247", "lastModified": "2026-09-24T21:25:27.050", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-62247", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-22T14:12:26.229589Z", "version": "2.0.3"}}]}, "published": "2026-09-21T20:17:27.470", "references": [{"source": "security-advisories@github.com", "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"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.111.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "realtime", "source": "cna", "vendor": "supabase"}, "product": "realtime", "vendor": "supabase"}], "created": "2026-09-21T20:45:17.695710+00:00", "updated": "2026-09-22T19:25:08.557572+00:00", "vendors": ["supabase", "supabase$PRODUCT$realtime"]}