{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-5270",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-5270",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-14T22:24:34.750Z",
    "updatedAt": "2026-07-15T12:39:32.248Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Authentication Bypass in Navigator and Blue Planet Products",
      "summary": "An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite (NCS), Manage Control Plan (MCP), and Blue Planet products. The issue is caused by improper handling of HTTP request paths and headers, which allows an unauthenticated attacker to manipulate requests in a manner that bypasses authentication and associated audit logging controls.",
      "affected": [
        {
          "vendor": "CIENA",
          "product": "Navigator NCS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "CIENA",
          "product": "MCP",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "<= 8.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "CIENA",
          "product": "Planner Plus OnPrem",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "<= 4.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Blue Planet",
          "product": "Inventory",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "<=24.04.001",
              "status": "affected"
            },
            {
              "version": "<=23.12.401",
              "status": "affected"
            },
            {
              "version": "<=23.08.302",
              "status": "affected"
            },
            {
              "version": "<=23.04.701",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Blue Planet",
          "product": "Orchestration",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "<=24.04.2",
              "status": "affected"
            },
            {
              "version": "<=23.12.3",
              "status": "affected"
            },
            {
              "version": "<=23.08.4",
              "status": "affected"
            },
            {
              "version": "<=23.04.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Blue Planet",
          "product": "Route Optimization & Analysis",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "<=24.04.1.2-R",
              "status": "affected"
            },
            {
              "version": "<=23.12.1.6-R",
              "status": "affected"
            },
            {
              "version": "<=23.08.1.6-R",
              "status": "affected"
            },
            {
              "version": "<=23.04.P01-9-R",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Blue Planet",
          "product": "Unified Assurance & Analytics",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "<=24.04 MR1",
              "status": "affected"
            },
            {
              "version": "<=23.12 MR3",
              "status": "affected"
            },
            {
              "version": "<=23.04. MR4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}