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Critical · 9.8 CVE-2026-5270 EUVD-2026-44573GHSA-rp4h-q5qj-wrcr

Authentication Bypass in Navigator and Blue Planet Products

Published Jul 14, 2026 · Updated Jul 15, 2026 · Assigned by Ciena

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.

Affected products

VendorProductAffectedFixed
CIENA Navigator NCS 8.1 —
CIENA MCP <= 8.0 —
CIENA Planner Plus OnPrem <= 4.1 —
Blue Planet Inventory <=24.04.001, <=23.12.401, <=23.08.302, <=23.04.701 —
Blue Planet Orchestration <=24.04.2, <=23.12.3, <=23.08.4, <=23.04.2 —
Blue Planet Route Optimization & Analysis <=24.04.1.2-R, <=23.12.1.6-R, <=23.08.1.6-R, <=23.04.P01-9-R —
Blue Planet Unified Assurance & Analytics <=24.04 MR1, <=23.12 MR3, <=23.04. MR4 —

References