Vulnerability-Lookup

GHSA-XF4V-VQ77-2RGV

Vulnerability from github – Published: 2026-09-02 03:31 – Updated: 2026-09-02 03:31

Details

Coolify before 4.2.0 fails to properly escape environment variable key names in Docker commands executed over SSH on managed servers. Authenticated attackers can inject shell metacharacters into environment variable keys to execute arbitrary commands on the server host outside containers.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-84694"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-02T01:17:24Z",
    "severity": "HIGH"
  },
  "details": "Coolify before 4.2.0 fails to properly escape environment variable key names in Docker commands executed over SSH on managed servers. Authenticated attackers can inject shell metacharacters into environment variable keys to execute arbitrary commands on the server host outside containers.",
  "id": "GHSA-xf4v-vq77-2rgv",
  "modified": "2026-09-02T03:31:11Z",
  "published": "2026-09-02T03:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84694"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coollabsio/coolify/commit/b50839d4515b115b7ded5db609471440249995da"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coollabsio/coolify"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.php"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.php"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coollabsio/coolify/releases/tag/v4.2.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/coolify-before-4.2.0-remote-code-execution-via-environment-variable-key"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-84694 (GCVE-0-2026-84694)

Vulnerability from cvelistv5 – Published: 2026-09-02 00:37 – Updated: 2026-09-02 11:13

Title

Coolify before 4.2.0 Remote Code Execution via Environment Variable Key

Summary

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 11:13 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/coollabsio/coolify	product
https://github.com/coollabsio/coolify/commit/b508…	patch
https://github.com/coollabsio/coolify/blob/v4.1.2…	technical-description
https://github.com/coollabsio/coolify/blob/v4.1.2…	technical-description
https://github.com/coollabsio/coolify/releases/ta…	release-notes
https://www.vulncheck.com/advisories/coolify-befo…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
coollabsio	coolify	Affected: 0 , < 4.2.0 (semver) Unaffected: 4.2.0 (semver) cpe:2.3:a:coollabs:coolify::::::::

Date Public

2026-07-07 00:00

Credits

Jaime Ramírez

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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                "id": "CVE-2026-84694",
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                  },
                  {
                    "Technical Impact": "total"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T11:13:27.328132Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-XF4V-VQ77-2RGV

CVE-2026-84694 (GCVE-0-2026-84694)

Tags

Sightings

Nomenclature