next-auth: Tokens rotation does not persist the new token
Environment
When rotating tokens, new token is not stored and thus not reused, so token is lost. The old token still persists instead and used for all further iterations of current session. Only initial token generated on login works and reused constantly.
I use Keycloak as the external IDP Keycloak — 21.1.1 Nextjs — 13.4.2 Next-auth — 4.22.1 Node — 16.2.0, 19.9.0
Reproduction URL
https://github.com/mrbodich/next-auth-example-fork.git
Describe the issue
When I use async jwt() function in callbacks section, I get the new token from external IDP successfully, create the new token object and return in async jwt() just like documentation says.
Here is my piece of code in the last else block (if access token is expired)
} else {
// If the access token has expired, try to refresh it
console.log(`Old token expired: ${token.expires_at}`)
const newToken = await refreshAccessToken(token)
console.log(`New token acquired: ${newToken.expires_at}`)
return newToken
}
Once token expired, and else block is executed, I have constantly updating at each request. Here is what I get in the console logged:
Old token expired: 1684147058
Token was refreshed. New token expires in 60 sec at 1684147125, refresh token expires in 2592000 sec
New token acquired: 1684147125
Old token expired: 1684147058
Token was refreshed. New token expires in 60 sec at 1684147128, refresh token expires in 2592000 sec
New token acquired: 1684147128
Old token expired: 1684147058
Token was refreshed. New token expires in 60 sec at 1684147132, refresh token expires in 2592000 sec
New token acquired: 1684147132
As you see, 1684147058 is not changed between requests, so new JWT is just lost somewhere and not used for later requests. Though at the first login, returned jwt is used correctly.
How to reproduce
- Clone this repo https://github.com/mrbodich/next-auth-example-fork.git
- Transfer
.env.local.examplefile to.env.local file - When signing in, use credentials from
.env.local.examplefile,row 13 - After sign-in, token will start refreshing after 1 minute (token lifespan set in Keycloak)
- Look in the console for next-auth logs
⚠️ Try to comment lines 18 ... 25 in the index.tsx file (getServerSideProps function), and tokens will start rotating fine.
Expected behavior
Token returned in the async jwt() function in callbacks section must be used on the next request and not being lost.
About this issue
- Original URL
- State: open
- Created a year ago
- Reactions: 30
- Comments: 48 (3 by maintainers)
similiar problem is stated in #6642 . Sadly it seems like noone cares about this issue atm, altough its a system breaking problem.
As of authjs@5.0 (experimental), this is still an occurring issue. The initial token is stored; however, going forward, updates made to it are never saved (at least not to the token that is provided within
jwtcallback). As such, auth.js will attempt to refresh the token since it’s always checking against the firstexpires_attimestamp.Due to this issue, refresh token rotation is in practice, not possible with auth.js 😦
Edit 1: It’s pretty evident that the
next-auth.session-tokencookie is not updated whenever it has been created initially, despite returning new a new object within thejwtcallback. The difference seems to be that the first time around, the flow is triggered within thecore/callback.jswhereas subsequent requests are handled by thecore/session.jsfile.Edit 2: After some further investigation, the first request works as intended since auth.js is in control of the redirection flow, ie. when you go through an OAuth login procedure. At this point they are able to update the
next-auth.session-tokencookie and reflect the changes made within thejwtcallback.However, when using something like
getServerSession(...)method that invokes thejwtcallback, the new cookie is in actuality added to the response as intended. However, next is controlling the request, and strips the set-cookie header since it’s being run from a normal page and not an API, this notion is further supported in #7522.As such, there is much that can be done currently, until Next makes it possible to set cookies sitewide.
Edit 3: This is likewise an issue within Sveltekit (#6447) and, unfortunately, not isolated to Next. The fact that auth.js doesn’t work with both of these frameworks indicates (to me) that the refresh rotation functionality is currently broken. I think it would at least make sense to make this very apparent on the guide page that their example currently is not functional.
Hi @balazsorban44 , refresh token rotation seems to be broken. Do you know if there is a plan to fix this issue? Is someone looking into it?
Any progress with this bug? I cannot implement token refreshing with next auth. After login i getting new set of tokens and first refreshing is ok but when i get new set the old tokens are not updated and next refresh call gives me error.
Sadly I did not find a really convenient way without too much overhead to make it work with RSC. The only solution currently seems like to switch to traditional client-side Authentication with useSession and a SessionProvider.
@rohanrajpal @diegogava @eirik-k @karlbessette
A solution is to use middleware.ts, as it’s inline with the official next.js docs: https://nextjs.org/docs/pages/building-your-application/authentication
Solution available here (hats off to the guy Rinvii who first came up with it): https://github.com/nextauthjs/next-auth/discussions/9715
In short, you implement the refresh token rotation logic in middleware, and force getServerSession() to read the new session and send it back to the browser by setting the cookies. You do something like this:
Make sure you read all the comments on the references page to apply this to your situation
This is also happening with nextjs 14 and the new authjs 5 beta - using only the client side it will work, but whenever the token is refreshed through the middleware it is not updated to the client! The next request then still uses the old session.
I am using getServerSession in the app directory, but the problem stil occurs. But I guess the problem is because of the following issue stated by this user: https://github.com/nextauthjs/next-auth/discussions/6642#discussioncomment-5942013
@Mikk36 I disagree. As the author of referred discussion the problem is described with JWT tokens and not database strategy and problem seems to remain also we newer versions (its true that i haven’t tested with latest version).
I found out that the session wasn’t updating after an api request. After digging a lot, I’ve found this:
Call update() in your client after making the API call and it’ll sync the backend session with your cookies and you’ll now have the new AccessToken and RefreshToken.
Any updates on this issue?
Hello @balazsorban44. I’ve deployed Keycloak, made necessary setup and pushed my example based on the latest example repo fork to github. https://github.com/mrbodich/next-auth-example-fork.git
Alternatively, I’ve updated the main question, section Reproduction URL and How to reproduce
You can find the credentials to login in the .env.local.example file, along with other necessary env variables, so just transfer this file to the .env.local file. I’ve set token lifespan to 1 minute, so it’s the time you should wait before token will want to refresh
Updated issue description
I’ve found more details. Token rotation worked fine when using client-side session request. Once I’ve configured server-side session passing to props, refreshed tokens stopped persisting.
Look at this file in my repo. Tokens are rotating fine if you will comment lines 18 … 25
index.tsx@jarosik10 Refreshing in the callbacks does not work (yet) because of how Next.js with the app router works; the cookies() update() method can’t set cookies directly on the server side. That is why the solution is to implement the refresh token rotation logic in middleware.ts, where requests and responses can be intercepted. When refreshing the tokens in the middleware, you need to use the same token form factor as in your callbacks (explained here: https://github.com/nextauthjs/next-auth/discussions/9715#discussioncomment-8319836 and here: https://github.com/nextauthjs/next-auth/discussions/9715#discussioncomment-8476838).
The ‘official’ docs are hopelessly unclear, which is also the case for the page you just sent me, even though it got updated recently. Before #9715 existed, we were discussing here: https://github.com/nextauthjs/next-auth/issues/8254. It then got converted into the new discussion by the official maintainer:
For some reason, they refuse to be clear in the docs. I think they have just not found a clean way to implement this for server components, so they are silent about the issue.
I recommend you try the middleware solution. It is a bit of a hassle to set up, but works flawlessly once implemented. In any case, if you refuse to use this solution, you can always go for the database strategy instead of the JWT strategy. When saved in a database, the session can be updated however and whenever you like. Hope this helps 😃
@HenrikZabel I’m not using v5 myself yet because it is still in beta and as such not ready for production. However, a bunch of people in the discussion I linked to have successfully implemented this using the new v5.
This answers it? https://authjs.dev/guides/basics/callbacks#session-callback
I am thinking of using some kind of persistent storage option to store tokens and other metadata (refresh token, expiry time). Then again the problem starts with latency to get token data from storage? Any other probable solutions?
It seems, that token rotation actually theoretically works when using auth.js In all my cases auth.js returns a valid ‘set-cookie’ header as a response.
When using token rotation after a login I noticed, that after a redirect it calls Auth again on /api/auth/session.
I am using qwik-auth so I can only compare to that. It seems, that qwik-auth makes an exception when manually calling /api/auth/session and does not set the ‘set-cookie’ after a successful response.
Following I will describe what happens in qwik-auth, but I assume that the issue is similar with other implementations.
The issue is, that the updated cookie is not received by the client, since qwik-auth works like this:
Context: Reference: https://github.com/BuilderIO/qwik/blob/47c2d1e838e9f748b191e983dabb0bac476f8083/packages/qwik-auth/src/index.ts#L18
onRequest: Reference: https://github.com/BuilderIO/qwik/blob/47c2d1e838e9f748b191e983dabb0bac476f8083/packages/qwik-auth/src/index.ts#L90
The fix I did is here: https://github.com/BuilderIO/qwik/pull/4960/files
Have a look at the issue here: https://github.com/nextauthjs/next-auth/discussions/4229. Managed to get it work using update() from the useSession hook.
Could you give me an example?
@mrbodich Unfortunately, you have to use
getServerSessionon each routesgetServerSideProps. There is no way to use it on/and make the session available on all routes.By the way, I came up with this solution. Updated provider’s
profilemethod a bit withimage: profile.picture ?? null, just added the optional chaining for theimageproperty:PS: Thank you so much for your help.
@mrbodich That is not related to
getServerSession. You need to properly set theuserobject insidejwtcallback to make sure that no key inside theuserobject isundefined. It either has to have a value or has to benull.Please check PR - https://github.com/mrbodich/next-auth-example-fork/pull/1 for detailed code.
@mrbodich Instead of using
getSessioninsidegetServerSideProps, please usegetServerSessionas stated here. This persists the refresh token.