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Untriaged
Permalink CVE-2026-27769
2.7 LOW
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): HIGH
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): LOW
  • Availability impact (A): NONE
created 3 days, 6 hours ago
Connected Workspaces: Malicious remote server can manipulate arbitrary user's status

Mattermost versions 10.11.x <= 10.11.12 fail to validate whether users were correctly owned by the correct Connected Workspace which allows a malicious remote server connected using the Conntexted Workspaces feature to change the displayed status of local users via the Connected Workspaces API.. Mattermost Advisory ID: MMSA-2026-00603

References

Affected products

Mattermost
  • =<10.11.12
  • ==10.11.13
  • ==11.5.0

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