CVE-2026-55762 (GCVE-0-2026-55762)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:08 – Updated: 2026-06-25 12:34
VLAI
Title
Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint
Summary
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any authenticated user — including a standard user role account — can call this endpoint with {"setDeploymentAs": "new-workspace"} to permanently deregister the workspace from Rocket.Chat Cloud. This wipes all cloud credentials, removes the workspace license, breaks push notifications for all users, and requires manual re-registration to recover. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 12:34 UTC
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7868 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
RocketChat Rocket.Chat Affected: >= 8.5.0-rc.0, < 8.5.1
Affected: >= 8.4.0-rc.0, < 8.4.4
Affected: >= 8.3.0-rc.0, < 8.3.6
Affected: >= 8.2.0-rc.0, < 8.2.6
Affected: >= 8.1.0-rc.0, < 8.1.6
Affected: >= 7.11.0-rc.0, < 8.0.7
Affected: < 7.10.13
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