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fix(tokenExchange): use correct token type for userInfo requests #3336

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merged 1 commit into from Feb 9, 2024

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MrDeerly
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@MrDeerly MrDeerly commented Feb 7, 2024

Overview

This small changes fixes an issue in the token exchange flow. It explicitly sets the tokenType used for GET /userinfo to Bearer to be conform with the OIDC spec.

What this PR does / why we need it

Without this change the tokenType would be set to either urn:ietf:params:oauth:token-type:access_token or urn:ietf:params:oauth:token-type:id_token, which doesn't satisfy the OIDC spec.

The Access Token obtained from an OpenID Connect Authentication Request MUST be sent as a Bearer Token, per Section 2 of OAuth 2.0 Bearer Token Usage [RFC6750].

https://openid.net/specs/openid-connect-core-1_0.html#UserInfo (5.3.1)

Closes #3335

Signed-off-by: Chris H <33393789+MrDeerly@users.noreply.github.com>
@nabokihms
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@MrDeerly thanks! It does make sense. Because there are no integration tests, I will test this PR manually. If everything is okay, I will bump the merge button.

@nabokihms nabokihms self-requested a review February 8, 2024 06:31
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@nabokihms nabokihms left a comment

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Tested it and it works as expected, so, LGTM! Thank you for the fix.

@nabokihms nabokihms merged commit 79d5874 into dexidp:master Feb 9, 2024
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Token Exchange uses wrong tokenType for /userinfo request
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