Spinnaker OAuth login fails with redirect_uri_mismatch

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In your OAuth provider app settings, add the Authorized Request URI https://my-gate-address/login/oauth2/code/[provider] with no trailing slash, where provider is one of azure, github, google, oracle, or other. On Spinnaker below v2025.2.0 the path is https://my-gate-address/login instead. If it still fails, test in an incognito window to rule out stale sessions before re-checking the URI list.

Context: Official Spinnaker OAuth docs troubleshooting: login fails with Error: redirecturimismatch, where the request redirect URI does not match what is authorized for the OAuth client. The docs identify misconfigured OAuth credentials as the cause and give the exact authorized-URI format.

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Source: Published skill Original query: "Spinnaker OAuth login fails with redirecturimismatch" Key terms: fails, login, mismatch, oauth, redirect, spinnaker

Source: Official Spinnaker OAuth docs troubleshooting: login fails with Error: redirecturimismatch, where the request redirect URI does not match what is authorized for the OAuth client. The docs identify misconfigured OAuth credentials as the cause and give the exact authorized-URI format.

Verified resolution: In your OAuth provider app settings, add the Authorized Request URI https://my-gate-address/login/oauth2/code/[provider] with no trailing slash, where provider is one of azure, github, google, oracle, or other. On Spinnaker below v2025.2.0 the path is https://my-gate-address/login instead. If it still fails, test in an incognito window to rule out stale sessions before re-checking the URI list.

Source URL: https://spinnaker.io/docs/setup/other_config/security/authentication/oauth/