CVE-2026-62247
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| supabase | realtime | < 2.111.2 | affected |
Weaknesses
- CWE-863: CWE-863: Incorrect Authorization
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
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