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Coolify CVE-2026-27881

| EUVDEUVD-2026-40329 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-06-30 GitHub_M
5.0
CVSS 3.1 · Vendor: GitHub_M
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Object-level authorization, IDOR prevention
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 27, 2026

Information disclosure in Coolify API allows authenticated users to retrieve deployment records from arbitrary teams prior to version 4.0.0-beta.464. By supplying a valid deployment UUID to the /api/v1/deployments/{uuid} endpoint, any low-privileged authenticated user can read deployment details belonging to other teams, violating team isolation. This vulnerability has a CVSS score of 5.0, public exploit code exists, and no active exploitation has been confirmed (CISA KEV absent), with a low EPSS probability of 0.16%.

Affected VersionsENISA

coolify < 4.0.0-beta.464

Affected Packages

euvd coolify fix: 4.0.0-beta.464

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GitHub_M) PRIMARY 5.0 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
vuln.today AI 3.5 LOW

AC:H assigned because a valid cross-team UUID must be independently obtained; PR:L for required API authentication; S:C and C:L reflect read-only cross-tenant deployment data disclosure.

3.1 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

1
Patch available
Jun 30, 2026 - 16:01 EUVD

DescriptionCVE.org

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, GET /api/v1/deployments/{uuid} in DeployController.php retrieves deployment details without validating that the deployment belongs to the authenticated user's team. Any authenticated API user can read deployment records from other teams by providing a valid deployment UUID. This vulnerability is fixed in 4.0.0-beta.464.

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +25
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2026-57498 CRITICAL POC
9.6 Jun 29

Cross-team authorization bypass in Coolify (open-source self-hosted PaaS) before 4.0.0-beta.474 allows an authenticated,

CVE-2025-34161 CRITICAL POC
9.4 Aug 27

Coolify versions prior to v4.0.0-beta.420.7 are vulnerable to a remote code execution vulnerability in the project deplo

CVE-2025-34159 CRITICAL POC
9.4 Aug 27

Coolify versions prior to v4.0.0-beta.420.6 are vulnerable to a remote code execution vulnerability in the application d

CVE-2025-64424 CRITICAL POC
9.4 Jan 05

Command injection in Coolify up to and including v4.0.0-beta.434 lets any authenticated low-privileged 'member' execute

CVE-2025-59156 CRITICAL POC
9.4 Jan 05

Remote code execution on the host OS is possible through Coolify's application deployment workflow prior to version 4.0.

CVE-2025-66211 CRITICAL POC
9.4 Dec 23

Authenticated command injection in Coolify's PostgreSQL initialization-script filename handling allows users with applic

CVE-2025-66210 CRITICAL POC
9.4 Dec 23

Coolify versions prior to 4.0.0-beta.451 pass user-supplied database names unsanitized into shell commands executed via

CVE-2025-66213 CRITICAL POC
9.4 Dec 23

Authenticated Coolify users who hold application or service management permissions can execute arbitrary commands as roo

CVE-2025-66212 CRITICAL POC
9.4 Dec 23

Authenticated command injection in Coolify before 4.0.0-beta.451 lets users with application or service management permi

CVE-2025-59158 CRITICAL POC
9.4 Jan 05

Stored cross-site scripting in Coolify versions up to and including v4.0.0-beta.420.6 lets an authenticated low-privileg

CVE-2026-34594 HIGH POC
8.8 Jun 29

Authenticated OS command injection in Coolify before 4.0.0-beta.471 lets any user holding destination management permiss

CVE-2026-34597 HIGH POC
8.8 Jun 29

Authenticated remote code execution in Coolify (self-hosted PaaS) before 4.0.0-beta.470 lets a low-privileged authentica

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