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CVE-2026-34048

CriticalPublished

Coolify: Missing authorization on terminal websocket bootstrap routes allows low-privileged members to execute commands on team servers

Published: Jul 7, 2026
Updated: Jul 7, 2026
Assigning CNA: GitHub_M
Evidence observed: Aug 8, 2026

Primary CVSS

9.9/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS probability estimate

0.8%

Low · next 30 days

Percentile: 54.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, terminal websocket bootstrap routes only check authentication and do not enforce terminal authorization, allowing a low-privileged team member to connect to terminal routes and execute commands on team servers. This issue is fixed in version 4.0.0-beta.471.

Sources

CVE-2026-34048PoC
Admin-only terminal bootstrap routes checked only for login state, which let a normal team member drive Coolify's realtime terminal backend and execute commands on team servers.

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