CVE-2026-55762Network attack vector

Authenticated workspace deregistration via missing endpoint authorization

Published Jun 24, 2026 · Updated Jun 24, 2026

Missing authorization in Rocket.Chat's fingerprint endpoint allows remote authenticated users to deregister a workspace from Rocket.Chat Cloud. The POST handler in apps/meteor/app/api/server/v1/misc.ts requires authentication but never checks manage-cloud permission before removeAllCredentials clears cloud credentials and license settings. Any standard user account can trigger the operation, disabling licensed features, push delivery, and Marketplace connectivity until manual re-registration.

CVSS severity8.1
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Rocket.Chat's fingerprint endpoint allows remote authenticated users to deregister a workspace from Rocket.Chat Cloud. The POST handler in apps/meteor/app/api/server/v1/misc.ts requires authentication but never checks manage-cloud permission before removeAllCredentials clears cloud credentials and license settings. Any standard user account can trigger the operation, disabling licensed features, push delivery, and Marketplace connectivity until manual re-registration.

The record

CVE
CVE-2026-55762
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Rocket.Chat Technologies Corp.
Product
Rocket.Chat
Classifications
CWE-862, T1489
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 7.10.13
  2. Affected versionversion=>= 7.11.0-rc.0, < 8.0.7
  3. Affected versionversion=>= 8.1.0-rc.0, < 8.1.6
  4. Affected versionversion=>= 8.2.0-rc.0, < 8.2.6
  5. Affected versionversion=>= 8.3.0-rc.0, < 8.3.6
  6. Affected versionversion=>= 8.4.0-rc.0, < 8.4.4
  7. Affected versionversion=>= 8.5.0-rc.0, < 8.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Rocket.Chat Technologies Corp. · Rocket.Chatversion=< 7.10.13; version=>= 7.11.0-rc.0, < 8.0.7; version=>= 8.1.0-rc.0, < 8.1.6; version=>= 8.2.0-rc.0, < 8.2.6; version=>= 8.3.0-rc.0, < 8.3.6; version=>= 8.4.0-rc.0, < 8.4.4; version=>= 8.5.0-rc.0, < 8.5.1

Published CVSS scores

8.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1489Service Stop

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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