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CVE-2026-5270

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a7bdbd51ae4aa64ee52c2128baf96766cbe17aa4e3866b21773feca702802e71
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 7 assertions

{"defaultStatus":"unaffected","product":"Inventory","vendor":"Blue Planet","versions":[{"status":"affected","version":"<=24.04.001"},{"status":"affected","version":"<=23.12.401"},{"status":"affected","version":"<=23.08.302"},{"status":"affected","version":"<=23.04.701"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/3

{"defaultStatus":"unaffected","product":"Orchestration","vendor":"Blue Planet","versions":[{"status":"affected","version":"<=24.04.2"},{"status":"affected","version":"<=23.12.3"},{"status":"affected","version":"<=23.08.4"},{"status":"affected","version":"<=23.04.2"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/4

{"defaultStatus":"unaffected","product":"Navigator NCS","vendor":"CIENA","versions":[{"status":"affected","version":"8.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"MCP","vendor":"CIENA","versions":[{"status":"affected","version":"<= 8.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Route Optimization & Analysis","vendor":"Blue Planet","versions":[{"status":"affected","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"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/5

{"defaultStatus":"unaffected","product":"Planner Plus OnPrem","vendor":"CIENA","versions":[{"status":"affected","version":"<= 4.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/2

{"defaultStatus":"unaffected","product":"Unified Assurance & Analytics","vendor":"Blue Planet","versions":[{"status":"affected","version":"<=24.04 MR1"},{"status":"affected","version":"<=23.12 MR3"},{"status":"affected","version":"<=23.04. MR4"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/6

Affected products and versions

7 source assertions
{"defaultStatus":"unaffected","product":"Inventory","vendor":"Blue Planet","versions":[{"status":"affected","version":"<=24.04.001"},{"status":"affected","version":"<=23.12.401"},{"status":"affected","version":"<=23.08.302"},{"status":"affected","version":"<=23.04.701"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/3
{"defaultStatus":"unaffected","product":"Orchestration","vendor":"Blue Planet","versions":[{"status":"affected","version":"<=24.04.2"},{"status":"affected","version":"<=23.12.3"},{"status":"affected","version":"<=23.08.4"},{"status":"affected","version":"<=23.04.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/4
{"defaultStatus":"unaffected","product":"Navigator NCS","vendor":"CIENA","versions":[{"status":"affected","version":"8.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"MCP","vendor":"CIENA","versions":[{"status":"affected","version":"<= 8.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Route Optimization & Analysis","vendor":"Blue Planet","versions":[{"status":"affected","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"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/5
{"defaultStatus":"unaffected","product":"Planner Plus OnPrem","vendor":"CIENA","versions":[{"status":"affected","version":"<= 4.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/2
{"defaultStatus":"unaffected","product":"Unified Assurance & Analytics","vendor":"Blue Planet","versions":[{"status":"affected","version":"<=24.04 MR1"},{"status":"affected","version":"<=23.12 MR3"},{"status":"affected","version":"<=23.04. MR4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/affected/6

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-287","description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.ciena.com/product-security"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:209c79ce0399cf67b66ba07f542e9e83b6a8bc7d8bb3c56a2072b3b43af24b7d · sha256:fbe0766849309419… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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