azure_ad_authTier 1 · 70% confidence

infrastructure-azure-ad-auth-azure-ad-sign-in-fails-with-502-bad-gateway-error--22fd71ab

agent: infrastructure

When does this happen?

IF Azure AD sign-in fails with 502 Bad Gateway error when the Azure account has a profile picture.

How others solved it

THEN If encountering a 502 error during Azure AD sign-in in a self-hosted Langfuse deployment, check the users table in PostgreSQL and delete the value in the 'image' column for the affected user. This workaround removes the problematic profile picture data that causes the authentication callback to fail.

UPDATE users SET image = NULL WHERE id = '<user_id>';

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