What’s Vulnerable › Vulnerabilities
CVE-2026-5270: Authentication Bypass in Navigator and Blue Planet Products
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-14 · updated 2026-07-15
- Weakness: CWE-287
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
- Blue Planet Inventory: through 24.04.001; through 23.12.401; through 23.08.302; through 23.04.701
- Blue Planet Orchestration: through 24.04.2; through 23.12.3; through 23.08.4; through 23.04.2
- Blue Planet Route Optimization & Analysis: through 24.04.1.2-R; through 23.12.1.6-R; through 23.08.1.6-R; through 23.04.P01-9-R
- Blue Planet Unified Assurance & Analytics: through 24.04 MR1; through 23.12 MR3; through 23.04. MR4
- CIENA MCP: through 8.0
- CIENA Navigator NCS: 8.1
- CIENA Planner Plus OnPrem: through 4.1
References
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