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CVE-2026-62247— Supabase Realtime: Incorrect Authorization

Quick assessment

Affected
supabase realtime
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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.w

CVSS 6.5 · Medium EPSS 0.32% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
supabase realtime < 2.111.2 affected
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I. Basic Information for CVE-2026-62247

Vulnerability Information

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Vulnerability Title
Supabase Realtime: Incorrect Authorization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
supabase realtime < 2.111.2 -

II. Public POCs for CVE-2026-62247

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III. Intelligence Information for CVE-2026-62247

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Patches & Fixes for CVE-2026-62247 (1)

Other References for CVE-2026-62247 (2)

IV. Related Vulnerabilities

Same vendor: supabase
Same weakness: CWE-863

V. Comments for CVE-2026-62247

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