CVE-2026-55762: CWE-862: Missing Authorization in RocketChat Rocket.Chat
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.
AI Analysis
Technical Summary
CVE-2026-55762 is a missing authorization vulnerability (CWE-862) in Rocket.Chat's POST /api/v1/fingerprint REST endpoint. While the endpoint requires authentication, it does not perform authorization checks, allowing any authenticated user, including those with standard user roles, to invoke the endpoint with a payload that deregisters the workspace from Rocket.Chat Cloud. This results in the removal of cloud credentials, loss of the workspace license, and disruption of push notifications for all users. Recovery requires manual re-registration of the workspace. The issue affects versions prior to 7.10.13, 8.0.7, 8.1.6, 8.2.6, 8.3.6, 8.4.4, and 8.5.1, where it has been fixed.
Potential Impact
Exploitation allows any authenticated user to deregister the workspace from Rocket.Chat Cloud, wiping all cloud credentials and removing the workspace license. This breaks push notifications for all users and necessitates manual re-registration to restore normal operation. There is no confidentiality impact, but integrity and availability are severely affected.
Mitigation Recommendations
Upgrade Rocket.Chat to version 7.10.13, 8.0.7, 8.1.6, 8.2.6, 8.3.6, 8.4.4, or 8.5.1 or later, where this vulnerability is fixed. No other mitigations are indicated. Patch status is confirmed fixed in these versions.
CVE-2026-55762: CWE-862: Missing Authorization in RocketChat Rocket.Chat
Description
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.
CVSS v3.1
Score 8.1high
Affected software
pkg:github/rocketchat/Rocket.ChatRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55762 is a missing authorization vulnerability (CWE-862) in Rocket.Chat's POST /api/v1/fingerprint REST endpoint. While the endpoint requires authentication, it does not perform authorization checks, allowing any authenticated user, including those with standard user roles, to invoke the endpoint with a payload that deregisters the workspace from Rocket.Chat Cloud. This results in the removal of cloud credentials, loss of the workspace license, and disruption of push notifications for all users. Recovery requires manual re-registration of the workspace. The issue affects versions prior to 7.10.13, 8.0.7, 8.1.6, 8.2.6, 8.3.6, 8.4.4, and 8.5.1, where it has been fixed.
Potential Impact
Exploitation allows any authenticated user to deregister the workspace from Rocket.Chat Cloud, wiping all cloud credentials and removing the workspace license. This breaks push notifications for all users and necessitates manual re-registration to restore normal operation. There is no confidentiality impact, but integrity and availability are severely affected.
Mitigation Recommendations
Upgrade Rocket.Chat to version 7.10.13, 8.0.7, 8.1.6, 8.2.6, 8.3.6, 8.4.4, or 8.5.1 or later, where this vulnerability is fixed. No other mitigations are indicated. Patch status is confirmed fixed in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-17T14:34:51.880Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3c501f4853345fc1e45ca8
Added to database: 06/24/2026, 21:46:07 UTC
Last enriched: 07/01/2026, 22:46:56 UTC
Last updated: 08/09/2026, 00:41:15 UTC
Views: 61
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