CVE-2026-15507 coollabsio CVE debrief

Who should care

Users of coollabsio Coolify up to version 4.1.1 should verify their installations and consider applying patches or mitigations. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the risk and implement necessary security measures.

Technical summary

The vulnerability, CVE-2026-15507, is caused by a missing authorization issue in the Policy Handler component of coollabsio Coolify up to version 4.1.1. This issue allows for remote exploitation, potentially leading to unauthorized access or data breaches. The CVSS score is 2.1, indicating a low severity. However, users should still verify and patch their installations to prevent potential security risks.

Defensive priority

Low priority due to low CVSS score, but users should still verify and patch their installations to prevent potential security risks.

Recommended defensive actions

• Verify Coolify installation version and check for patches
• Implement compensating controls to monitor and restrict access to the Policy Handler component
• Monitor for public exploit usage and adjust security measures accordingly
• Review and update security policies to address missing authorization issues
• Conduct regular security audits to identify potential vulnerabilities
• Implement asset inventory management to track affected systems
• Establish a rollback and change management process for affected systems

Evidence notes

The CVE record was published on 2026-07-12T22:16:35.917Z and has not been modified since then. The NVD entry is currently in the 'Received' status. The vulnerability was detected in coollabsio Coolify up to 4.1.1. Evidence of exploitation is limited, and defenders should verify their installations and consider applying patches or mitigations.

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.