CVE-2026-40165

authentik · authentik

A security vulnerability has been identified in the authentik open-source identity provider which may impact authentication security.

Executive summary

The authentik identity provider is affected by a security vulnerability that could threaten the integrity of managed authentication services.

Vulnerability

The vulnerability affects the authentik open-source identity provider. Specific details regarding the attack vector and required authentication levels are currently insufficient to determine if the flaw is exploitable by an unauthenticated attacker.

Business impact

With a CVSS score of 8.7, this is a High severity vulnerability that poses a significant risk to identity management infrastructure. Exploitation could allow unauthorized access to sensitive systems integrated with the identity provider, leading to widespread data exposure or privilege escalation.

Remediation

Immediate Action: Upgrade to the latest version of authentik as soon as a security patch is released by the vendor.

Proactive Monitoring: Monitor authentication logs for suspicious login patterns, failed access attempts, or unauthorized configuration changes.

Compensating Controls: Ensure multi-factor authentication (MFA) is enforced wherever possible to provide a secondary layer of defense against credential-based attacks.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Identity providers are high-value targets for attackers; therefore, this vulnerability must be addressed with high priority. Organizations should track the official authentik security channel for patch releases and prepare for an immediate deployment once the fix is available.