# CVE-2026-34038: Coollabsio Coolify command injection in application deployment handling

Source: https://junglewise.ai/threats/cve-2026-34038-coollabsio-coolify-command-injection-in-application-deployment  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-06. Updated: 2026-07-06  
License: CC BY 4.0 with a link back

CVE-2026-34038 · Severity: critical · CVSS 9.9 · Published 2026-07-06

Coolify, an open-source tool for managing servers and applications, contains a vulnerability that allows authorized users to execute unauthorized commands on the host system. By manipulating application deployment settings, a user with write permissions can gain full control over the server and steal sensitive information like environment variables and credentials. This could lead to a complete compromise of the managed infrastructure and any hosted data.

## Quick answers

**Is CVE-2026-34038 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-34038 being exploited in the wild.

**How severe is CVE-2026-34038?** Critical severity, with a CVSS score of 9.9, published 6 July 2026.

**Which products and versions are affected?** coollabsio Coolify < 4.0.0-beta.469.

**Is there a fix for CVE-2026-34038?** A patch was published on 2026-03-18: Fix committed to repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-34038 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-34038?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An authenticated remote command injection vulnerability exists in Coolify's application deployment handling. The flaw is rooted in improper neutralization of special elements used in OS commands (CWE-78) within fields such as 'dockerfile_location' and various deployment command inputs. An attacker with application write permissions can inject malicious commands that are executed by the underlying system during the deployment process. This allows for full remote code execution (RCE) and the ability to exfiltrate sensitive environment variables via deployment logs. The vulnerability was addressed in version 4.0.0-beta.469 by improving input validation and sanitization for deployment-related fields.

## Affected products

- coollabsio Coolify < 4.0.0-beta.469

## Timeline

- 2026-03-18: patched: Fix committed to repository
- 2026-03-20: advisory: Release v4.0.0-beta.469 published
- 2026-07-06: disclosed: CVE published to NVD

## References

- [https://github.com/coollabsio/coolify/commit/23f9156c7306b221101f1ebbe4d3c6b5e2522acd](https://github.com/coollabsio/coolify/commit/23f9156c7306b221101f1ebbe4d3c6b5e2522acd)
- [https://github.com/coollabsio/coolify/pull/9007](https://github.com/coollabsio/coolify/pull/9007)
- [https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.469](https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.469)
- [https://github.com/coollabsio/coolify/security/advisories/GHSA-qqrq-r9h4-x6wp](https://github.com/coollabsio/coolify/security/advisories/GHSA-qqrq-r9h4-x6wp)