CVE-2026-25703 in NeuVector
Summary
by MITRE • 08/05/2026
NeuVector through 5.4.9 is can potentially leak information from manager /network/graph API due to missing authentication and cached data containing sensitive information.
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Analysis
by VulDB Data Team • 08/05/2026
This vulnerability in NeuVector versions through 5.4.9 represents a critical security flaw that exposes sensitive operational data through improperly configured API endpoints. The issue stems from insufficient authentication mechanisms on the manager network graph API, which allows unauthorized access to confidential system information. The vulnerability specifically affects the /network/graph API endpoint where cached data containing sensitive information is accessible without proper authorization checks.
The technical implementation of this flaw involves missing authentication controls that should have validated user credentials and permissions before exposing network topology data. This type of vulnerability falls under CWE-284 Access Control Issues, where insufficient access control mechanisms allow unauthorized users to gain access to restricted resources. The cached data exposure aspect indicates poor data handling practices where sensitive information remains accessible even after initial authentication, creating a persistent security risk.
From an operational impact perspective, this vulnerability enables attackers to obtain comprehensive network topology information including service mappings, communication patterns, and potentially sensitive system configurations. The leaked information could facilitate advanced persistent threats by providing attackers with detailed network maps that aid in lateral movement and privilege escalation. This exposure directly violates the principle of least privilege and creates opportunities for reconnaissance activities that would otherwise require legitimate administrative access.
The security implications extend beyond simple information disclosure to include potential exploitation pathways through the ATT&CK framework's reconnaissance and privilege escalation phases. Attackers could leverage this information to identify high-value targets, understand network segmentation, and plan more sophisticated attacks against critical infrastructure components. The cached nature of the data suggests that even if initial access is restricted, previously cached sensitive information remains vulnerable for extended periods.
Organizations should implement immediate mitigations including enforcing strict authentication controls on all API endpoints, implementing proper access control lists for network graph data, and ensuring cache invalidation mechanisms are properly configured to prevent unauthorized data retention. Regular security audits of API endpoint configurations should be conducted to identify similar vulnerabilities in other system components. The remediation process must include comprehensive testing to verify that authentication controls are properly enforced and that no cached sensitive information remains accessible without proper authorization.