Vulnerability DatabaseCVE-2026-55762
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CVE-2026-55762
Published:June 24, 2026
Updated:June 29, 2026
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.
Affected Packages
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) >=0.8.0 <7.10.13
Fix Suggestion:
Update to version 7.10.13
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) =8.5.0 <8.5.1
Fix Suggestion:
Update to version 8.5.1
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) >=8.3.0 <8.3.6
Fix Suggestion:
Update to version 8.3.6
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) >=8.0.0 <8.0.7
Fix Suggestion:
Update to version 8.0.7
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) >=8.1.0 <8.1.6
Fix Suggestion:
Update to version 8.1.6
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) >=8.4.0 <8.4.4
Fix Suggestion:
Update to version 8.4.4
https://github.com/RocketChat/Rocket.Chat.git (GITHUB):
Affected version(s) >=8.2.0 <8.2.6
Fix Suggestion:
Update to version 8.2.6
Related Resources (1)
https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8hhc-j325-rxqp
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CVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Missing Authorization
CWE-862
EPSS
Base Score:
0.32