Hi, The "state cannot be determined" error is generally a good hint that there is a problem with the session used by pac4j. By default, it is clustered and you should track the "DISSessionXXX" cookie: is it set on the right path? Does it change during the login process? Thanks. Best regards, Jérôme
Le mer. 15 juil. 2026 à 00:19, 'Matthew Gordon' via CAS Community < [email protected]> a écrit : > Hello Louis, > > Did you ever resolve this issue? > > Thank you, > Matt > > On Thursday, February 19, 2026 at 11:56:03 AM UTC-5 Louis Chanouha wrote: > >> I found the commit which changed pac4j session behaviour: >> >> https://github.com/apereo/cas/commit/2fbee582903a60dcfd5522c95f50ab2e728d1312 >> >> Le jeudi 19 février 2026 à 13:27:33 UTC+1, Louis Chanouha a écrit : >> >>> Hello, >>> I'm currently upgrading my CAS from 7.2 to 7.3. >>> I have an regression on my PAC4j delegated OIDC. >>> >>> Did anyone experienced this issue or is aware of changes on 7.3 ? I >>> did'nt see linked changes on CAS 7.3 RC's changelog >>> >>> Thanks :) >>> >>> 2026-02-19 11:16:56,739 DEBUG >>> [org.apereo.cas.web.flow.actions.DelegatedClientAuthenticationRedirectAction] >>> - <Redirecting client [FranceConnect] based on identifier >>> [TST-1-****************TBp-pP6-7f3c2b761bc8]> >>> 2026-02-19 11:16:56,740 DEBUG >>> [org.apereo.cas.web.flow.actions.DelegatedClientAuthenticationRedirectAction] >>> - <Redirecting to [ >>> https://fcp-low.integ01.dev-franceconnect.fr/api/v2/authorize?scope=openid%20given_name%20family_name%20birthdate%20birthplace%20birthcountry%20preferred_username&acr_values=eidas1&claims=%7B%22id_token%22%3A%7B%22amr%22%3A%7B%22essential%22%3Atrue%7D%7D%7D&response_type=code&redirect_uri=https%3A%2F%2Fcas-dev.fqdn.fr%2Fcas%2Flogin%2FFranceConnect&state=12345&nonce=6789] >>> via client [FranceConnect]> >>> // LOGIN // >>> 2026-02-19 11:17:08,596 DEBUG >>> [org.apereo.cas.web.flow.controller.DefaultDelegatedAuthenticationNavigationController] >>> - <Received response from client [FranceConnect]; Redirecting to [ >>> https://cas-dev.fqdn.fr/cas/login?code=oBJ74fVZvkezMQSdu5L7NNVUoJwhgcwzZlOOryIEMXg&state=999&iss=https%3A%2F%2Ffcp-low.integ01.dev-franceconnect.fr%2Fapi%2Fv2&client_name=FranceConnect >>> ]> >>> >>> >>> >>> *2026-02-19 11:17:08,667 DEBUG >>> [org.apereo.cas.web.flow.CasFlowHandlerMapping] - <Mapped to >>> [FlowHandlerMapping.DefaultFlowHandler@24f51b6c]>2026-02-19 11:17:08,672 >>> DEBUG >>> [org.apereo.cas.web.flow.DefaultDelegatedClientAuthenticationWebflowManager] >>> - <Located delegated client identifier []>2026-02-19 11:17:08,672 INFO >>> [org.apereo.cas.web.flow.DefaultDelegatedClientAuthenticationWebflowManager] >>> - <Delegated client identifier [] is undefined in request URL >>> [https://cas-dev.fqdn.fr/cas/login?code=oBJ74fVZvkezMQSdu5L7NNVUoJwhgcwzZlOOryIEMXg&state=999&iss=https%3A%2F%2Ffcp-low.integ01.dev-franceconnect.fr%2Fapi%2Fv2&client_name=FranceConnect >>> <https://cas-dev.fqdn.fr/cas/login?code=oBJ74fVZvkezMQSdu5L7NNVUoJwhgcwzZlOOryIEMXg&state=999&iss=https%3A%2F%2Ffcp-low.integ01.dev-franceconnect.fr%2Fapi%2Fv2&client_name=FranceConnect>]>2026-02-19 >>> 11:17:08,673 DEBUG >>> [org.apereo.cas.authentication.principal.DefaultDelegatedAuthenticationCredentialExtractor] >>> - <Fetching credentials from delegated client >>> [OidcClient(super=IndirectClient(super=BaseClient(name=FranceConnect, >>> authorizationGenerators=[],* >>> credentialsExtractor=org.pac4j.oidc.credentials.extractor.OidcCredentialsExtractor@6fae47b2, >>> authenticator=org.pac4j.oidc.credentials.authenticator.OidcAuthenticator@419b23f3, >>> profileCreator=InitializableObject(initialized=false, maxAttempts=3, >>> nbAttempts=0, lastAttempt=null, >>> minTimeIntervalBetweenAttemptsInMilliseconds=5000), >>> customProperties={autoRedirectType=NONE, cssClass=franceconnect, >>> displayName=Se connecter avec France Connect}, >>> profileFactoryWhenNotAuthenticated=null, multiProfile=false, >>> saveProfileInSession=true, config=null), callbackUrl= >>> https://cas-dev.fqdn.fr/cas/login, >>> urlResolver=org.pac4j.core.http.url.DefaultUrlResolver@61f7cde6, >>> callbackUrlResolver=org.pac4j.core.http.callback.PathParameterCallbackUrlResolver@42780018, >>> ajaxRequestResolver=org.pac4j.core.http.ajax.DefaultAjaxRequestResolver@f94a4b5, >>> redirectionActionBuilder=org.pac4j.oidc.redirect.OidcRedirectionActionBuilder@71eb34d1, >>> logoutProcessor=org.pac4j.oidc.logout.processor.OidcLogoutProcessor@2e2c5ff7, >>> logoutActionBuilder=org.pac4j.oidc.logout.OidcLogoutActionBuilder@2cd6e2ea, >>> checkAuthenticationAttempt=true), >>> configuration=OidcConfiguration(clientId=377f9c3fd633bb7f85362d6b97aea642101916336709c051c3d0816fd83e4e0e, >>> discoveryURI= >>> https://fcp-low.integ01.dev-franceconnect.fr/api/v2/.well-known/openid-configuration, >>> scope=openid,given_name,family_name,birthdate,birthplace,birthcountry,preferred_username, >>> customParams={claims={"id_token": {"amr": {"essential": true } } }, >>> acr_values=eidas1}, clientAuthenticationMethod=null, >>> supportedClientAuthenticationMethods=null, >>> privateKeyJWTClientAuthnMethodConfig=null, useNonce=true, disablePkce=true, >>> pkceMethod=null, preferredJwsAlgorithm=ES256, maxAge=null, maxClockSkew=5, >>> resourceRetriever=org.pac4j.oidc.config.OidcConfiguration$OidcResourceRetriever@6cd4ac9, >>> responseType=code, responseMode=null, logoutUrl=null, connectTimeout=5000, >>> readTimeout=5000, withState=true, mappedClaims={}, >>> stateGenerator=org.pac4j.core.util.generator.RandomValueGenerator@2ea8bb7d, >>> codeVerifierGenerator=org.pac4j.core.util.generator.RandomValueGenerator@62378ab8, >>> valueRetriever=org.pac4j.oidc.util.SessionStoreValueRetriever@79edf5a6, >>> expireSessionWithToken=false, tokenExpirationAdvance=0, >>> allowUnsignedIdTokens=false, includeAccessTokenClaimsInProfile=false, >>> sslSocketFactory=sun.security.ssl.SSLSocketFactoryImpl@188d92f9, >>> callUserInfoEndpoint=true, >>> hostnameVerifier=org.apache.hc.client5.http.ssl.DefaultHostnameVerifier@151a6350, >>> opMetadataResolver=InitializableObject(initialized=true, maxAttempts=3, >>> nbAttempts=1, lastAttempt=1771499816004, >>> minTimeIntervalBetweenAttemptsInMilliseconds=5000), >>> logoutValidation=true))]> >>> 2026-02-19 11:17:08,676 DEBUG >>> [org.pac4j.oidc.credentials.extractor.OidcCredentialsExtractor] - >>> <Authentication response successful> >>> 2026-02-19 11:17:08,780 DEBUG >>> [org.pac4j.core.resource.SpringResourceLoader] - <lastModified: 0 / >>> newLastModified: 0 -> hasChanged: false> >>> 2026-02-19 11:17:08,781 DEBUG [org.pac4j.oidc.client.OidcClient] - <no >>> credentials and profile returned -> remember the authentication attempt> >>> 2026-02-19 11:17:08,781 DEBUG [org.pac4j.oidc.client.OidcClient] - <save >>> authentication attempt in session> >>> 2026-02-19 11:17:08,781 DEBUG >>> [org.apereo.cas.ticket.registry.AbstractMapBasedTicketRegistry] - <Putting >>> ticket [TST-844ad5a8-c34c-46ef-9dc0-dd2242cfa147] in registry.> >>> 2026-02-19 11:17:08,784 WARN >>> [org.apereo.cas.util.function.FunctionUtils] - <State cannot be determined> >>> org.pac4j.oidc.exceptions.OidcMissingSessionStateException: State cannot >>> be determined >>> at >>> org.pac4j.oidc.credentials.extractor.OidcCredentialsExtractor.lambda$extract$0(OidcCredentialsExtractor.java:141) >>> at java.base/java.util.Optional.orElseThrow(Optional.java:403) >>> at >>> org.pac4j.oidc.credentials.extractor.OidcCredentialsExtractor.extract(OidcCredentialsExtractor.java:141) >>> at >>> org.pac4j.core.client.BaseClient.getCredentials(BaseClient.java:80) >>> at >>> org.apereo.cas.authentication.principal.DefaultDelegatedAuthenticationCredentialExtractor.lambda$getCredentialsFromDelegatedClient$2(DefaultDelegatedAuthenticationCredentialExtractor.java:50) >>> at >>> org.apereo.cas.util.function.FunctionUtils.lambda$doAndHandle$12(FunctionUtils.java:425) >>> at >>> org.apereo.cas.authentication.principal.DefaultDelegatedAuthenticationCredentialExtractor.getCredentialsFromDelegatedClient(DefaultDelegatedAuthenticationCredentialExtractor.java:54) >>> at >>> org.apereo.cas.authentication.principal.DefaultDelegatedAuthenticationCredentialExtractor.extract(DefaultDelegatedAuthenticationCredentialExtractor.java:30) >>> at >>> org.apereo.cas.web.flow.actions.DelegatedClientAuthenticationAction.lambda$populateContextWithClientCredential$6(DelegatedClientAuthenticationAction.java:255) >>> at >>> java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) >>> at >>> java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) >>> at >>> java.base/java.util.AbstractList$RandomAccessSpliterator.tryAdvance(AbstractList.java:708) >>> at >>> java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129) >>> at >>> java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527) >>> at >>> java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513) >>> at >>> java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) >>> at >>> java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) >>> at >>> java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) >>> at >>> java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647) >>> >>> >>> Actual working flow on 7.2 >>> >>> >>> 2026-02-19 11:09:55,610 DEBUG >>> [org.apereo.cas.ticket.registry.AbstractMapBasedTicketRegistry] - <Putting >>> ticket [TST-dbf06ff0-3d72-46e3-9f71-4d848732222b] in registry.> >>> 2026-02-19 11:09:55,610 DEBUG >>> [org.apereo.cas.web.flow.DefaultDelegatedClientAuthenticationWebflowManager] >>> - <Located delegated client identifier >>> [TST-1-****************I1iEQpe-9aae8cc0bfc1]> >>> 2026-02-19 11:09:55,611 DEBUG >>> [org.apereo.cas.web.flow.DefaultDelegatedClientAuthenticationWebflowManager] >>> - <Located delegated authentication client identifier as >>> [TST-1-****************I1iEQpe-9aae8cc0bfc1]> >>> 2026-02-19 11:09:55,611 DEBUG >>> [org.apereo.cas.web.flow.DefaultDelegatedClientAuthenticationWebflowManager] >>> - <Removing delegated client identifier >>> [TST-1-****************I1iEQpe-9aae8cc0bfc1] from registry> >>> 2026-02-19 11:09:55,612 DEBUG >>> [org.apereo.cas.ticket.registry.AbstractTicketRegistry] - >>> >> -- > - Website: https://apereo.github.io/cas > - List Guidelines: https://goo.gl/1VRrw7 > - Contributions: https://goo.gl/mh7qDG > --- > You received this message because you are subscribed to the Google Groups > "CAS Community" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/a/apereo.org/d/msgid/cas-user/ef472eb7-a556-4aeb-9727-894ef13ee369n%40apereo.org > <https://groups.google.com/a/apereo.org/d/msgid/cas-user/ef472eb7-a556-4aeb-9727-894ef13ee369n%40apereo.org?utm_medium=email&utm_source=footer> > . > -- - 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