CVE-2026-34047
CWE-863Published: July 7, 2026· Updated: Jul 7, 2026
Official Description
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 did not enforce the expected authorization middleware, allowing an authenticated user to access terminal functionality for resources outside the authorized scope and potentially execute commands. This issue is fixed in version 4.0.0-beta.471.
Risk Analysis
This critical vulnerability in Coolify allows authenticated users to access terminal functionality for resources outside their authorized scope, potentially leading to command execution. With a CVSS score of 9.9, this flaw presents an extremely high risk, as it can result in full compromise of server integrity, confidentiality, and availability. The absence of an EPSS score means the exploitation likelihood is not yet quantified, but the severity demands immediate attention.
No public exploit is currently known for this vulnerability. However, it is remotely exploitable over the network with low attack complexity, requiring only authenticated access.
Update Coolify to version 4.0.0-beta.471 or later to fix the missing authorization middleware. Implement robust authorization checks for all critical functions to prevent authenticated users from exceeding their intended permissions.
Technical Analysis
CVE-2026-34047 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (5)
Quick Facts
Related CVEs (CWE-863)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-34047 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts