CVE-2026-34158Public exploitNetwork attack vector

Host command execution via single-quote breakout

Published Jul 7, 2026 · Updated Jul 7, 2026

OS command injection in Coolify before 4.0.0-beta.469 allows remote authenticated users to execute commands on managed server hosts. The executeInDocker() helper encloses raw Docker Compose custom build or start commands in single quotes, so an embedded quote ends the bash -c argument and exposes trailing shell syntax. Application-settings write access and a Docker Compose deployment are required; injected commands run on the managed host with the configured SSH user privileges.

CVSS severity8.8
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Coolify before 4.0.0-beta.469 allows remote authenticated users to execute commands on managed server hosts. The executeInDocker() helper encloses raw Docker Compose custom build or start commands in single quotes, so an embedded quote ends the bash -c argument and exposes trailing shell syntax. Application-settings write access and a Docker Compose deployment are required; injected commands run on the managed host with the configured SSH user privileges.

The record

CVE
CVE-2026-34158
Published
Jul 7, 2026
Updated
Jul 7, 2026
Vendor
coolLabs
Product
Coolify
Classifications
CWE-78, T1059.004, T1611
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.0.0-beta.469

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

coolLabs · Coolifyversion=< 4.0.0-beta.469

Published CVSS scores

9.9coollabsio advisory narrativeCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell
T1611Escape to Host

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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