CVE-2024-27918

Summary

CVE-2024-27918: In older versions of Coder, a vulnerability in the Organization-Initiated Development (OIDC) authentication system could allow an attacker to bypass email domain verification and register with an email not on the allowlist. This issue only affects Coder instances with OIDC enabled and protected by the `CODER_OIDC_EMAIL_DOMAIN` setting, using a public OIDC provider. Attackers could exploit this vulnerability by registering a domain name that partially matches an allowed domain, enabling unauthorized access. The vulnerability has been addressed in versions 2.8.4, 2.7.3, and 2.6.1. It is recommended that users upgrade their deployments immediately if they are using OIDC authentication with the `CODER_OIDC_EMAIL_DOMAIN` setting. GitHub authentication and external authentication are not impacted by this issue.

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