CVE-2026-5270 (GCVE-0-2026-5270)
Vulnerability from cvelistv5 – Published: 2026-07-14 22:24 – Updated: 2026-07-15 12:39
VLAI
EPSS
VEX
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.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| CIENA | Navigator NCS |
Affected:
8.1
|
|
| CIENA | MCP |
Affected:
<= 8.0
|
|
| CIENA | Planner Plus OnPrem |
Affected:
<= 4.1
|
|
| Blue Planet | Inventory |
Affected:
<=24.04.001
Affected: <=23.12.401 Affected: <=23.08.302 Affected: <=23.04.701 |
|
| Blue Planet | Orchestration |
Affected:
<=24.04.2
Affected: <=23.12.3 Affected: <=23.08.4 Affected: <=23.04.2 |
|
| Blue Planet | Route Optimization & Analysis |
Affected:
<=24.04.1.2-R
Affected: <=23.12.1.6-R Affected: <=23.08.1.6-R Affected: <=23.04.P01-9-R |
|
| Blue Planet | Unified Assurance & Analytics |
Affected:
<=24.04 MR1
Affected: <=23.12 MR3 Affected: <=23.04. MR4 |
Credits
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MR4\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Ciena recommends upgrading to the latest\\navailable remediated release. For additional details, refer to myciena.com for\\ncurrent software versions, fixes, and security advisories.\\n\\n\\n\\n\\n\\n\\u00a0\\n\\n\\n\\n\\n\\nRemediation\\nand Fixes: \\n\\n\\n\\n\\n \\n \\n \\n\\n\\u00a0Products \\n\\n\\n \\n \\n \\n\\nRemediated Version\\n\\n\\n \\n \\n \\n \\n \\n\\nBP Inventory\\n\\n\\n \\n \\n \\n\\n\u003e=24.08, 24.04.100, 23.12.500, 23.08.400,\\n 23.04.800\\n\\n\\n \\n \\n \\n \\n \\n\\nBP Orchestration \\n\\n\\n \\n \\n \\n\\n\u003e=24.08, 24.04.3 MR3, 23.12.4 MR4,\\n 23.08.5 MR5, \\n\\n 23.04.4 MR3\\n\\n\\n \\n \\n \\n \\n \\n\\nBP Route Optimization \u0026 Analysis\\n\\n\\n \\n \\n \\n\\n\u003e=24.08, 24.04.2-3-R, 23.12.2.1-R, 23.08.2.-1-R, \\n\\n 23.04.P02-1-R\\n\\n\\n \\n \\n \\n \\n \\n\\nBP Unified Assurance \u0026 Analytics \\n\\n\\n \\n \\n \\n\\n\u003e=24.08, 24.04.MR2, 23.12.MR4\\n\\n\\n \\n \\n \\n \\n \\n\\nNavigator NCS\\n\\n\\n \\n \\n \\n\\n\u003e= 8.2, 8.1-P02\\n\\n\\n \\n \\n \\n \\n \\n\\nMCP\\n\\n\\n \\n \\n \\n\\n8.0-P04, 7.2-P07\\n\\n\\n \\n \\n \\n \\n \\n\\nPlanner Plus OnPrem\\n\\n\\n \\n \\n \\n\\n\u003e= 4.2, 4.1-P01\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eCiena recommends upgrading to the latest\\navailable remediated release. For additional details, refer to myciena.com for\\ncurrent software versions, fixes, and security advisories.\u003c/p\u003e\\n\\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\\n\\n\u003cp\u003e\u003cb\u003eRemediation\\nand Fixes: \u003c/b\u003e\u003c/p\u003e\\n\\n\u003ctable\u003e\\n \u003ctbody\u003e\u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u003cb\u003e\u0026nbsp;Products \u003c/b\u003e\u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u003cb\u003eRemediated Version\u003c/b\u003e\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003eBP Inventory\u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u0026gt;=24.08, 24.04.100, 23.12.500, 23.08.400,\\n 23.04.800\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003eBP Orchestration \u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u0026gt;=24.08, 24.04.3 MR3, 23.12.4 MR4,\\n 23.08.5 MR5, \u003cbr\u003e\\n 23.04.4 MR3\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003eBP Route Optimization \u0026amp; Analysis\u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u0026gt;=24.08, 24.04.2-3-R, 23.12.2.1-R, 23.08.2.-1-R, \u003cbr\u003e\\n 23.04.P02-1-R\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003eBP Unified Assurance \u0026amp; Analytics \u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u0026gt;=24.08, 24.04.MR2, 23.12.MR4\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003eNavigator NCS\u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u0026gt;= 8.2, 8.1-P02\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003eMCP\u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e8.0-P04, 7.2-P07\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n \u003ctr\u003e\\n \u003ctd\u003e\\n \u003cp\u003ePlanner Plus OnPrem\u003c/p\u003e\\n \u003c/td\u003e\\n \u003ctd\u003e\\n \u003cp\u003e\u0026gt;= 4.2, 4.1-P01\u003c/p\u003e\\n \u003c/td\u003e\\n \u003c/tr\u003e\\n\u003c/tbody\u003e\u003c/table\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://www.ciena.com/product-security\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite (NCS), Manage Control Plan (MCP), and Blue Planet\\u00a0products. 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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite (NCS), Manage Control Plan (MCP), and Blue Planet\u0026nbsp;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.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-287\", \"description\": \"CWE-287 Improper Authentication\"}]}], \"providerMetadata\": {\"orgId\": \"7bd90cf1-1651-495e-9ae8-9415fb3c9feb\", \"shortName\": \"Ciena\", \"dateUpdated\": \"2026-07-14T22:24:34.750Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-5270\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-15T12:39:32.248Z\", \"dateReserved\": \"2026-03-31T19:44:41.118Z\", \"assignerOrgId\": \"7bd90cf1-1651-495e-9ae8-9415fb3c9feb\", \"datePublished\": \"2026-07-14T22:24:34.750Z\", \"assignerShortName\": \"Ciena\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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