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CVE-2026-96627

Full vulnerability record from the local CVENow database.

Description

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.6.0, UpdateUser in backend/api/handlers/users.go sets PasswordHash for any target without comparing caller and target privilege. A holder of delegated users:update permission can submit a password change for the global administrator, replace the administrator password, and authenticate as that account, resulting in complete global administrator account takeover. This issue is fixed in version 2.6.0.

Severity
HIGH
CVSS score
8.8 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-10-16 22:18:58.227000
Last modified
2026-10-19 15:17:09.873000
View original CVE JSON
{
  "id": "CVE-2026-96627",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-16T22:18:58.227",
  "lastModified": "2026-10-19T15:17:09.873",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.6.0, UpdateUser in backend/api/handlers/users.go sets PasswordHash for any target without comparing caller and target privilege. A holder of delegated users:update permission can submit a password change for the global administrator, replace the administrator password, and authenticate as that account, resulting in complete global administrator account takeover. This issue is fixed in version 2.6.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "getarcaneapp",
          "product": "arcane",
          "versions": [
            {
              "version": "< 2.6.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-19T14:33:08.031435Z",
          "id": "CVE-2026-96627",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        },
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/getarcaneapp/arcane/commit/21ea962f86d967dac8ae02a050f6e5f043d10fa1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getarcaneapp/arcane/pull/3426",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getarcaneapp/arcane/releases/tag/backend/v2.6.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getarcaneapp/arcane/security/advisories/GHSA-pw5q-rjx4-7f7p",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getarcaneapp/arcane/security/advisories/GHSA-pw5q-rjx4-7f7p",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}