CVE-2026-34048: Access Control Flaw (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 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.

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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

0.0041

Probability of exploitation

0.33%

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-285 CWE-285

CWE-862 Missing Authorization

References

Other References

https://github.com/coollabsio/coolify/commit/847166a3f89b7c80972fa0d2e5c754976f95b6ad https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471 https://github.com/coollabsio/coolify/security/advisories/GHSA-mw6q-2hmg-mhxv https://github.com/coollabsio/coolify/security/advisories/GHSA-mw6q-2hmg-mhxv

Frequently Asked Questions

What is CVE-2026-34048? +

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

How severe is CVE-2026-34048? +

CVE-2026-34048 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 0.0041, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-34048? +

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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