CVE-2026-5270: CWE-287 Improper Authentication in CIENA Navigator NCS
CVE-2026-5270 is an authentication bypass vulnerability in Ciena Navigator Network Control Suite (NCS) version 8.1. It arises from improper handling of HTTP request paths and headers, enabling unauthenticated attackers to bypass authentication and audit logging controls. No patch or official remediation guidance is currently available. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability affects Ciena Navigator NCS version 8.1 and related products, caused by improper processing of HTTP request paths and headers. This flaw allows an attacker to bypass authentication mechanisms and associated audit logging, potentially granting unauthorized access to the system. The vulnerability is categorized under CWE-287 (Improper Authentication). No CVSS score or vendor advisory detailing a fix or mitigation is currently available.
Potential Impact
Successful exploitation could allow an unauthenticated attacker to gain unauthorized access to the affected system and bypass audit logging controls, potentially compromising system integrity and confidentiality. The absence of authentication enforcement increases the risk of unauthorized operations within the affected product.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No specific mitigations or workarounds are provided in the available data.
CVE-2026-5270: CWE-287 Improper Authentication in CIENA Navigator NCS
Description
CVE-2026-5270 is an authentication bypass vulnerability in Ciena Navigator Network Control Suite (NCS) version 8.1. It arises from improper handling of HTTP request paths and headers, enabling unauthenticated attackers to bypass authentication and audit logging controls. No patch or official remediation guidance is currently available. There are no known exploits in the wild at this time.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Ciena Navigator NCS version 8.1 and related products, caused by improper processing of HTTP request paths and headers. This flaw allows an attacker to bypass authentication mechanisms and associated audit logging, potentially granting unauthorized access to the system. The vulnerability is categorized under CWE-287 (Improper Authentication). No CVSS score or vendor advisory detailing a fix or mitigation is currently available.
Potential Impact
Successful exploitation could allow an unauthenticated attacker to gain unauthorized access to the affected system and bypass audit logging controls, potentially compromising system integrity and confidentiality. The absence of authentication enforcement increases the risk of unauthorized operations within the affected product.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No specific mitigations or workarounds are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Ciena
- Date Reserved
- 2026-03-31T19:44:41.118Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a56bcac68715ace4355d902
Added to database: 07/14/2026, 22:48:12 UTC
Last enriched: 07/14/2026, 23:03:07 UTC
Last updated: 07/14/2026, 23:07:20 UTC
Views: 4
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