CVE-2026-34153 coollabsio CVE debrief

Who should care

Users of Coolify versions prior to 4.0.0-beta.471 should be aware of this vulnerability and take immediate action to upgrade to the patched version. Authenticated users with the ability to add file storage are at risk of being able to execute commands. Operators, platform administrators, and security teams should review the vulnerability and take necessary actions to protect their systems.

Technical summary

The vulnerability exists in the LocalFileVolume::saveStorageOnServer function, which builds shell commands using unescaped fs_path and parent_dir values before validation. The submitFileStorage function also fails to validate the user-controlled file-mount path before creating a volume. This allows an authenticated user to execute commands when adding file storage. The vulnerability has a high severity score of 8.8 and affects Coolify versions prior to 4.0.0-beta.471.

Defensive priority

High

Recommended defensive actions

• Upgrade to Coolify version 4.0.0-beta.471 or later
• Restrict access to file storage configuration to trusted users
• Monitor for suspicious activity related to file storage
• Implement additional security controls, such as input validation and command sanitization
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-06T22:16:48.370Z and last modified on 2026-07-07T16:16:38.680Z. The NVD entry is currently Deferred. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The CVE record was created based on limited source information, and additional details may be needed to fully understand the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.