Daniel Beck added a comment - 2021-12-20 15:03 Interesting; we're on matrix-auth 3.0 on ci.jenkins.io, also with an LDAP realm, and there was no trouble identifying groups. Perhaps you could play with the config a bit to narrow down circumstances for this to happen?

Daniel Beck added a comment - 2021-12-20 15:04 What happens when you reload the page, perhaps even restart Jenkins? Is this a transitory problem perhaps?

Petr Kadlec added a comment - 2021-12-20 19:53 I restarted the Jenkins and reloaded Jenkins, the error is still there. I took a look at the network requests via the Developer toolbar, and found out there are requests for https://.../descriptorByName/hudson.security.ProjectMatrixAuthorizationStrategy/checkName?value=%5BGROUP%3AAP_GIT_...%5D which returns a “div class=error” HTML fragment shown in the User/group column. I have not found anything else obviously interesting…

Reinhold Füreder added a comment - 2021-12-23 14:55 (Not sure if that helps you or is your problem, but in our case the default group search filter was not appropriate; and we had nonetheless successfully used group based permissions => using a group search filter according to the docs helped us)

Daniel Beck added a comment - 2022-01-03 16:28 To diagnose, run in the script console : Jenkins.get().getSecurityRealm().loadGroupByGroupname('AAP_GIT_WHATEVER') What's the result?

Damien Finck added a comment - 2022-01-03 17:10 In my case: Jenkins.get().getSecurityRealm().loadGroupByGroupname('XXXXX') org.springframework.security.core.userdetails.UsernameNotFoundException: XXXXX at hudson.security.LDAPSecurityRealm.searchForGroupName(LDAPSecurityRealm.java:884) at hudson.security.LDAPSecurityRealm.loadGroupByGroupname2(LDAPSecurityRealm.java:849) at hudson.security.AbstractPasswordBasedSecurityRealm.loadGroupByGroupname(AbstractPasswordBasedSecurityRealm.java:169) Caused: org.acegisecurity.userdetails.UsernameNotFoundException: org.springframework.security.core.userdetails.UsernameNotFoundException: XXXXX; nested exception is org.springframework.security.core.userdetails.UsernameNotFoundException: XXXXX at org.acegisecurity.userdetails.UsernameNotFoundException.fromSpring(UsernameNotFoundException.java:58) at org.acegisecurity.AuthenticationException.fromSpring(AuthenticationException.java:98) at hudson.security.AbstractPasswordBasedSecurityRealm.loadGroupByGroupname(AbstractPasswordBasedSecurityRealm.java:171) at hudson.security.AbstractPasswordBasedSecurityRealm$loadGroupByGroupname.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125) at Script1.run(Script1.groovy:1) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:585) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:623) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:594) at hudson.util.RemotingDiagnostics$Script.call(RemotingDiagnostics.java:143) at hudson.util.RemotingDiagnostics$Script.call(RemotingDiagnostics.java:113) at hudson.remoting.LocalChannel.call(LocalChannel.java:46) at hudson.util.RemotingDiagnostics.executeGroovy(RemotingDiagnostics.java:110) at jenkins.model.Jenkins._doScript(Jenkins.java:4674) at jenkins.model.Jenkins.doScript(Jenkins.java:4645) at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(Unknown Source) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:393) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:405) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:208) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:141) at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:536) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:694) at org.kohsuke.stapler.Stapler.service(Stapler.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:156) at org.jenkinsci.plugins.ssegateway.Endpoint$SSEListenChannelFilter.doFilter(Endpoint.java:248) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:128) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at jenkins.security.ResourceDomainFilter.doFilter(ResourceDomainFilter.java:80) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at io.jenkins.blueocean.ResourceCacheControl.doFilter(ResourceCacheControl.java:134) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at io.jenkins.blueocean.auth.jwt.impl.JwtAuthenticationFilter.doFilter(JwtAuthenticationFilter.java:60) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at org.jenkinsci.plugins.modernstatus.ModernStatusFilter.doFilter(ModernStatusFilter.java:50) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at hudson.plugins.locale.LocaleFilter.doFilter(LocaleFilter.java:42) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:159) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:153) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:92) at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:53) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:101) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:92) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:218) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:97) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:62) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:109) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:51) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:85) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:39) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:516) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:386) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) at java.base/java.lang.Thread.run(Unknown Source)  Jenkins 2.319.1 Matrix Authorization Strategy Plugin 3.0

Daniel Beck added a comment - 2022-01-03 17:31 The security realm claims there is no such group.  matrix-auth works as expected; I suggest you review your LDAP security realm settings as Reinhold mentioned. Looking at config screenshots from https://plugins.jenkins.io/ldap/ I would expect you to have configured LDAP security realm with "Parse user attribute for list of LDAP groups", which would decouple group lookup (this issue) and group memberships for a given user; so permissions would still work as expected.