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 comm

highCVSS 8.8CVE-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 quotes. Attackers who can edit application settings can inject a single quote into docker_compose_custom_build_command or docker_compose_custom_start_command to break out of the quoted context and execute arbitrary commands on the managed server host during deployments, escaping the intended Docker container confinement. This issue is fixed in version 4.0.0-beta.469.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8.8
Published: 2026-07-07
Last updated: 2026-07-07
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-34158

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-341580.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-34158	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] Coolify: Multiple vulnerabilitiescert-bund

Recent advisories for Coolify is an

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[NEW] [high] Coolify: Multiple vulnerabilitiescert-bund · 2026-07-10
highCVE-2026-59734: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-09
high[NEW] [high] Coolify: Vulnerability allows code execution and disclosurecert-bund · 2026-07-07
lowCVE-2026-42201: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-07
highCVE-2026-42200: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-07
lowCVE-2026-42172: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-07