CVE intelligence and bounded remediation

CVE-2022-32220 — Rocket.Chat Rocket.Chat security vulnerability

Medium CVSS 6.5

An information disclosure vulnerability exists in Rocket.Chat <v5 due to the getUserMentionsByChannel meteor server method discloses messages from private channels and direct messages regardless of the users access permission to the room.

Severity
Medium
CVSS
6.5 (3.1)
Published
2022-09-23
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-200, CWE-862

Affected products

  • rocket.chat / rocket.chat

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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