Vulnerability-Lookup

CVE-2026-86114 (GCVE-0-2026-86114)

Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-14 19:33

Title

Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints

Summary

Arcane versions before 2.0.0 fail to properly restrict template operations, allowing default user role accounts to create, modify, and delete compose templates including instance-wide defaults. Attackers can inject malicious container configurations with privileged settings or host path mounts that execute with administrative privileges when deployed by administrators.

Severity

7.1 (High)


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

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 19:22 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/geo-chen/oss/blob/main/arcane.md	technical-description
https://github.com/getarcaneapp/arcane/blob/v1.19…	technical-description
https://github.com/getarcaneapp/arcane/commit/150…	patch
https://github.com/getarcaneapp/arcane/releases/t…	release-notes
https://github.com/getarcaneapp/arcane	product
https://www.vulncheck.com/advisories/arcane-befor…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
getarcaneapp	arcane	Affected: 1.19.1 , < 2.0.0 (semver) cpe:2.3:a:getarcane:arcane::::::::

Date Public

2026-09-04 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-86114

Vulnerability from fkie_nvd - Published: 2026-09-05 10:16 - Updated: 2026-09-14 20:17

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/geo-chen/oss/blob/main/arcane.md
	disclosure@vulncheck.com	https://github.com/getarcaneapp/arcane
	disclosure@vulncheck.com	https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go
	disclosure@vulncheck.com	https://github.com/getarcaneapp/arcane/commit/1500646aa91f
	disclosure@vulncheck.com	https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/getarcaneapp/arcane/commit/1500646aa91f"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-PJ2X-FR4J-WRXQ

Vulnerability from github – Published: 2026-09-05 12:31 – Updated: 2026-09-05 12:31

Details

Severity

6.5 (Medium)


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

7.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-86114"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-05T10:16:42Z",
    "severity": "HIGH"
  },
  "details": "Arcane versions before 2.0.0 fail to properly restrict template operations, allowing default user role accounts to create, modify, and delete compose templates including instance-wide defaults. Attackers can inject malicious container configurations with privileged settings or host path mounts that execute with administrative privileges when deployed by administrators.",
  "id": "GHSA-pj2x-fr4j-wrxq",
  "modified": "2026-09-05T12:31:26Z",
  "published": "2026-09-05T12:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86114"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getarcaneapp/arcane/commit/1500646aa91f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geo-chen/oss/blob/main/arcane.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getarcaneapp/arcane"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/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"
    }
  ]
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-86114 (GCVE-0-2026-86114)

FKIE_CVE-2026-86114

GHSA-PJ2X-FR4J-WRXQ

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Related by attack behaviour