CVE-2026-34047: Auth Bypass (CVSS 9.9)

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.

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CVSS v3.1 Score

9.9

CRITICAL

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

EPSS — Exploit Prediction

0.0045

Probability of exploitation

0.37%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/coollabsio/coolify/commit/bc91b41f92f1bbb53886a5d7a60335cbf1621cd5 https://github.com/coollabsio/coolify/pull/9169 https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471 https://github.com/coollabsio/coolify/security/advisories/GHSA-652w-qv22-2r7c https://github.com/coollabsio/coolify/security/advisories/GHSA-652w-qv22-2r7c

Frequently Asked Questions

What is CVE-2026-34047? +

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. It has a CVSS v3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2026-34047? +

CVE-2026-34047 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0045, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-34047? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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