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Graph/token-type-ambiguity

Pattern

Token Type Ambiguity

token-type-ambiguity

Authorization flows fail when services treat JWT and opaque tokens interchangeably without an explicit token-type indicator; revocation/introspection logic can mis-handle credentials, enabling unintended token use while also making endpoint enumeration and runtime abuse easier.

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Updated7/14/2026

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30 linked nodes

Axios requests need to work on both client and server in Next.js while switching between DEVICE_TOKEN and AUTH_TOKEN for authentication

in my react application I get a `403 Forbidden error` — the token is decrypted, but in my react application. Tension: Токен не найден в куки. Outcome: You could remove `dependencies=[Depends(JWTBearer())]` and that should work fine.

only one type of account can be logged in in swagger ui. Tension: there's an api where the 'user' account is accessible, and there's an api where the 'shop' account is accessible. Outcome: Is there a way to use both types of accounts in Swagger ui?

FastAPI returns 401 with JWK public Attribute for authorization token not found

nothing is modified and 0 rows are returned — with the following RLS rules. Tension: the authentication check `( auth.uid() = user_id )` doesn't match up when using the JWT. Outcome: I think I need to pass the JWT to the `supabase` client as well.

you should use the same secret in both places. Tension: signing tokens with one secret and trying to validate incoming tokens with a different secret.

Each application should gets its own token for data access. Tension: with its own access to resources.

Avoid passing tokens in URLs. Tension: tokens can leak to logs and be exploited.

Is it a good idea to make a call to the authorization service for every request? — a "one-per-request" filter to the main service. Tension: to call the authorization service, check the JWT, and get user information from it. Outcome: in the future, to all other services.

there is an endpoint in the main service that needs to be secured not only by a valid JWT — in the main service. Tension: but also by the roles that the authenticated user has. Outcome: configure secured endpoints for each service?

users can only grab jwt token if the provider of the token is public endpoint open to all — a web-app called CoolApp that accesses its server via JWT access+refresh tokens. Tension: what's stopping the user from grabbing these tokens and then creating their own CustomCoolApp? Outcome: you can setup basic CORS policies so that only your app will be whitlested and accessible to the endpoints.

Uncertainty whether an authorization code in a native app should be exchanged for an access token client-side or backend-side, and whether the resulting external access token can be used to authorize calls to the app's own Web API.

how do I see whether it's an access token or an ID token? — Given a JWT token (OIDC) issued by Microsoft identity platform. Tension: I don't want the check to rely on assumptions.

Open service that returns a username from a JWT — Sending your JWT to an "open" service. Tension: that extra network trip provides no value. Outcome: Get rid of it.

Confusion about cookie authentication versus token authentication

if I expose the Token in any kind of form to the frontend — creating an iFrame for my ChatBot. Tension: Anyone, a "Hacker", would then be able to identify as "Customer of User A". Outcome: This is sadly not possible under any circumstances, to allow such easy impersonation.

it is also required to "forget" the token right after exiting/closing the app — I have a web API which uses JWT tokens for accessing resources. Tension: The issue with (1) is that it's not cleared when a browser's tab is closed but only when all the windows are. And (2) is not secure since if an attacker manages to inject a code into a client he will be able to extract the access token.

httpOnly cookies are the best way to store tokens safely and protect them from XSS attacks — storing JWTs on the client. Tension: JavaScript won't be allowed to read httpOnly cookies. How would the client handle routes authentication? Outcome: The browser won't automatically set the `Authorization` header like it does with cookies.

Need a standard way to tell which OAuth flow created an access token

Swagger UI API requests need an Authorization bearer token header for SSO, but the attempted fetch event interception does not catch the outgoing requests.

Invalid tokens are rejected. — the back uses its public key to verify the token was issued by itself. Tension: what is the point of ensuring the back was the legit issuer of the token? Outcome: it really doesn't serve any additional purpose here.

inspect their networking to view and copy such jwt token — download a legitimate app and inspect their networking. Tension: This jwt token can then be plugged in to any other app i.e a localhost server and combined with projectid etc... to perform requests that look legitimate.

workspaceId claim won't be updated until the token has been refresh — put workspaceId in the jwt claims. Tension: the drawback of this solution. Outcome: another solution that is to implement a service that query data from workspace-service and use it to validate.

BearerTokenAuthenticationFilter of second chain did not activate

Spring Authorization Server persistently stores OAuth2Authorization objects that include both JWT access tokens and refresh tokens. The user questions why access token values need to be stored when JWTs are self-contained and should not require server lookups per request.

the `"type"` property is missing from the array elements in the obfuscated form — after running through ProGuard. Tension: This causes Jackson to deserialize those objects incorrectly. Outcome: allows the example to run successfully even after obfuscation.

there was ZERO documentation on generating an OAuth token that could be consumed by the Java SDK — authenticate against Azurite using OAuth tokens. Tension: Azurite will only generate user delegation keys when OAuth over HTTPS is enabled. Outcome: We needed to test our Azure code against something real, so we decided to use Azurite.

after change password I'm unable to create access and refresh token using JWT — verifying the user OTP to change password.

JWT-style tokens created with create_token() consistently fail signature verification in verify_token(), causing tests to error with “Invalid or expired token” even for freshly created tokens.

Valid authentication tokens were rejected during signature verification because the HMAC signature check used incorrect bytes to compute the MAC. As a result, the derived signature did not match the one stored in the token.

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