Quick answers
- Is CVE-2026-55762 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-55762 being exploited in the wild.
- How severe is CVE-2026-55762?
- High severity, with a CVSS score of 8.1, published 24 June 2026.
- Which products and versions are affected?
- Rocket.Chat < 8.5.1, < 8.4.4, < 8.3.6, < 8.2.6, < 8.1.6, < 8.0.7, < 7.10.13.
- Is there a fix for CVE-2026-55762?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-55762 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-55762?
- Check whether you run Rocket.Chat at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A missing authorization check (CWE-862) exists in the 'POST /api/v1/fingerprint' REST endpoint within 'apps/meteor/app/api/server/v1/misc.ts'. While the endpoint requires authentication, it fails to verify if the user has administrative permissions (such as 'manage-cloud'). An attacker with standard user privileges can send a request with the 'setDeploymentAs' parameter set to 'new-workspace', triggering a routine that clears 'Cloud_Workspace_Id', 'Cloud_Workspace_License', and other critical cloud credentials. This results in a loss of integrity and availability for cloud-dependent features. The issue is resolved in versions 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13.
Affected products
- RocketChat Rocket.Chat < 8.5.1, < 8.4.4, < 8.3.6, < 8.2.6, < 8.1.6, < 8.0.7, < 7.10.13
Timeline
- 2026-06-15: advisory: GitHub advisory published by Rocket.Chat
- 2026-06-24: disclosed: NVD publication date