What is CVE-2026-34158?

CVE-2026-34158 is a high-severity vulnerability in Coollabsio Coolify, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-07.

How severe is CVE-2026-34158?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Coollabsio Coolify

CVE-2026-34158

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.469, the executeInDocker() helper wraps user-controlled commands in single quotes without escaping embedded single quot…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Coollabsio Coolify — versions < 4.0.0-beta.469

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-34158?: CVE-2026-34158 is a high-severity vulnerability in Coollabsio Coolify, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-07.
How severe is CVE-2026-34158?: High severity. CVSS v3 base score is 8.8 out of 10.