CVE-2026-5270
Authentication Bypass in Navigator and Blue Planet Products
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.
INFO
Published Date :
July 14, 2026, 11:17 p.m.
Last Modified :
July 14, 2026, 11:17 p.m.
Remotely Exploit :
No
Source :
7bd90cf1-1651-495e-9ae8-9415fb3c9feb
Affected Products
The following products are affected by CVE-2026-5270
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Ciena Navigator NCS.
- Update Ciena Manage Control Plan (MCP).
- Update Ciena Blue Planet products.
- Apply vendor-provided security patches.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5270.
| URL | Resource |
|---|---|
| https://www.ciena.com/product-security |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5270 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5270
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5270 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5270 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 7bd90cf1-1651-495e-9ae8-9415fb3c9feb
Jul. 14, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'CIENA', 'product': 'Navigator NCS', 'versions': [{'status': 'affected', 'version': '8.1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'CIENA', 'product': 'MCP', 'versions': [{'status': 'affected', 'version': '<= 8.0'}], 'defaultStatus': 'unaffected'}, {'vendor': 'CIENA', 'product': 'Planner Plus OnPrem', 'versions': [{'status': 'affected', 'version': '<= 4.1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Blue Planet', 'product': 'Inventory', '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'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Blue Planet', 'product': 'Orchestration', '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'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Blue Planet', 'product': 'Route Optimization & Analysis', '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'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Blue Planet', 'product': 'Unified Assurance & Analytics', 'versions': [{'status': 'affected', 'version': '<=24.04 MR1'}, {'status': 'affected', 'version': '<=23.12 MR3'}, {'status': 'affected', 'version': '<=23.04. MR4'}], 'defaultStatus': 'unaffected'}] 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. Added CWE CWE-287 Added Reference https://www.ciena.com/product-security