CVE-2026-44850
8.5Portainer · Portainer Community Edition
Portainer Community Edition contains an incorrect authorization vulnerability that may allow authenticated users to perform unauthorized actions.
Executive summary
Portainer Community Edition is affected by an authorization bypass vulnerability that allows authenticated users to perform actions exceeding their assigned privileges.
Vulnerability
This is an authorization flaw (CWE-863) where the application fails to correctly enforce permissions, allowing an authenticated user to gain unauthorized access to administrative functions or container management tasks.
Business impact
The CVSS score of 8.5 (Critical) highlights the significant risk of privilege escalation. An attacker with low-level access could potentially escalate their privileges to manage containers or modify configurations, leading to unauthorized control over the entire containerized infrastructure.
Remediation
Immediate Action: Upgrade Portainer instances to the fixed versions (2.33.8, 2.39.2, or 2.41.0) based on the current release branch.
Proactive Monitoring: Review audit logs for unauthorized configuration changes or actions performed by users that do not match their defined roles.
Compensating Controls: Temporarily restrict access to the Portainer management interface to trusted IP addresses or require multi-factor authentication if not already enforced.
Exploitation status
Public Exploit Available: No (exploit_available: false)
Analyst recommendation
Administrators should treat this as a high-priority update. Because this vulnerability facilitates privilege escalation within the management platform, applying the relevant security patch is essential to maintain the integrity and security of the container orchestration environment.