CVE-2026-55762
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| RocketChat | Rocket.Chat | >= 8.5.0-rc.0, < 8.5.1 | affected |
| RocketChat | Rocket.Chat | >= 8.4.0-rc.0, < 8.4.4 | affected |
| RocketChat | Rocket.Chat | >= 8.3.0-rc.0, < 8.3.6 | affected |
| RocketChat | Rocket.Chat | >= 8.2.0-rc.0, < 8.2.6 | affected |
| RocketChat | Rocket.Chat | >= 8.1.0-rc.0, < 8.1.6 | affected |
| RocketChat | Rocket.Chat | >= 7.11.0-rc.0, < 8.0.7 | affected |
| RocketChat | Rocket.Chat | < 7.10.13 | affected |
Weaknesses
- CWE-862: CWE-862: Missing Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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