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.
References
History

Sun, 02 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Blue Planet
Blue Planet inventory
Blue Planet orchestration
Blue Planet route Optimization & Analysis
Blue Planet unified Assurance & Analytics
Ciena
Ciena mcp
Ciena navigator Ncs
Ciena planner Plus Onprem
Vendors & Products Blue Planet
Blue Planet inventory
Blue Planet orchestration
Blue Planet route Optimization & Analysis
Blue Planet unified Assurance & Analytics
Ciena
Ciena mcp
Ciena navigator Ncs
Ciena planner Plus Onprem

Wed, 15 Jul 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 14 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Authentication Bypass in Navigator and Blue Planet Products
Weaknesses CWE-287
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Ciena

Published: 2026-07-14T22:24:34.750Z

Updated: 2026-07-15T12:39:32.248Z

Reserved: 2026-03-31T19:44:41.118Z

Link: CVE-2026-5270

cve-icon Vulnrichment

Updated: 2026-07-15T12:39:11.872Z

cve-icon NVD

No data.

cve-icon Redhat

No data.