diff --git a/.github/workflows/.trivyignore b/.github/workflows/.trivyignore
index c41ad4e..ac3a5c0 100644
--- a/.github/workflows/.trivyignore
+++ b/.github/workflows/.trivyignore
@@ -1,4 +1,9 @@
-# Date: Feb 27, 2024
-# Notes: Issue with libexpat, parsing large tokens can trigger a denial of service
-# Needs to be fixed in Docker Image.
-CVE-2023-52425
\ No newline at end of file
+# Date: March 21, 2024
+# Issue: Vulnerability in spring-web
+# Solution: Spring boot needs to update its version of spring
+CVE-2024-22259
+
+# Date: March 21, 2024
+# Issue: Vulnerability in spring-security-core
+# Solution: Spring boot needs to update its version of spring
+CVE-2024-22257
\ No newline at end of file
diff --git a/src/main/java/eu/dissco/orchestration/backend/controller/SourceSystemController.java b/src/main/java/eu/dissco/orchestration/backend/controller/SourceSystemController.java
index 8947b81..6faf1d0 100644
--- a/src/main/java/eu/dissco/orchestration/backend/controller/SourceSystemController.java
+++ b/src/main/java/eu/dissco/orchestration/backend/controller/SourceSystemController.java
@@ -11,8 +11,6 @@
 import eu.dissco.orchestration.backend.exception.ProcessingFailedException;
 import eu.dissco.orchestration.backend.properties.ApplicationProperties;
 import eu.dissco.orchestration.backend.service.SourceSystemService;
-import freemarker.template.TemplateException;
-import io.kubernetes.client.openapi.ApiException;
 import jakarta.servlet.http.HttpServletRequest;
 import java.io.IOException;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/eu/dissco/orchestration/backend/security/JwtAuthConverter.java b/src/main/java/eu/dissco/orchestration/backend/security/JwtAuthConverter.java
index 5dab213..7f7f97f 100644
--- a/src/main/java/eu/dissco/orchestration/backend/security/JwtAuthConverter.java
+++ b/src/main/java/eu/dissco/orchestration/backend/security/JwtAuthConverter.java
@@ -2,33 +2,39 @@
 
 import jakarta.validation.constraints.NotNull;
 import java.util.Collection;
-import java.util.Optional;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.oauth2.jwt.Jwt;
 import org.springframework.security.oauth2.jwt.JwtClaimNames;
 import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationToken;
-import org.springframework.security.oauth2.server.resource.authentication.JwtGrantedAuthoritiesConverter;
 import org.springframework.stereotype.Component;
 
 @Component
 public class JwtAuthConverter implements Converter<Jwt, AbstractAuthenticationToken> {
 
-  private final JwtGrantedAuthoritiesConverter jwtGrantedAuthoritiesConverter = new JwtGrantedAuthoritiesConverter();
-
   @Override
   public AbstractAuthenticationToken convert(@NotNull Jwt jwt) {
-    Collection<GrantedAuthority> authorities =
-        converterToStream(jwt).collect(Collectors.toSet());
-    return new JwtAuthenticationToken(jwt, authorities, getPrincipalClaimName(jwt));
+    return new JwtAuthenticationToken(jwt, extractRoles(jwt), getPrincipalClaimName(jwt));
   }
 
-  private Stream<GrantedAuthority> converterToStream(Jwt jwt) {
-    return Optional.of(jwtGrantedAuthoritiesConverter.convert(jwt)).stream()
-        .flatMap(Collection::stream);
+  private Set<GrantedAuthority> extractRoles(Jwt jwt) {
+    Set<GrantedAuthority> authorities = new HashSet<>();
+    if (jwt.getClaims().containsKey("resource_access")) {
+      ((Map<String, Object>) jwt.getClaims().get("resource_access")).forEach((k, v) -> {
+        Map<String, Object> resourceAccess = (Map<String, Object>) v;
+        resourceAccess.forEach((k1, v1) -> {
+          if (k1.equals("roles")) {
+            ((Collection<String>) v1).forEach(
+                role -> authorities.add((GrantedAuthority) () -> "ROLE_" + role));
+          }
+        });
+      });
+    }
+    return authorities;
   }
 
   private String getPrincipalClaimName(Jwt jwt) {
diff --git a/src/main/java/eu/dissco/orchestration/backend/security/WebSecurityConfig.java b/src/main/java/eu/dissco/orchestration/backend/security/WebSecurityConfig.java
index 55a786a..3244bcd 100644
--- a/src/main/java/eu/dissco/orchestration/backend/security/WebSecurityConfig.java
+++ b/src/main/java/eu/dissco/orchestration/backend/security/WebSecurityConfig.java
@@ -21,9 +21,12 @@ public class WebSecurityConfig {
   @Bean
   public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
     http.authorizeHttpRequests(authorizeHttpRequests -> authorizeHttpRequests
-        .requestMatchers(EndpointRequest.to(HealthEndpoint.class)).permitAll()
-        .requestMatchers(HttpMethod.GET, "**").permitAll()
-        .anyRequest().authenticated());
+        .requestMatchers(EndpointRequest.to(HealthEndpoint.class))
+        .permitAll()
+        .requestMatchers(HttpMethod.GET, "**")
+        .permitAll()
+        .anyRequest()
+        .hasRole("orchestration-admin"));
 
     http.oauth2ResourceServer(jwtoauth2ResourceServer -> jwtoauth2ResourceServer.jwt((
         jwt -> jwt.jwtAuthenticationConverter(jwtAuthConverter)
diff --git a/src/test/java/eu/dissco/orchestration/backend/security/JwtAuthConverterTest.java b/src/test/java/eu/dissco/orchestration/backend/security/JwtAuthConverterTest.java
new file mode 100644
index 0000000..f683a0b
--- /dev/null
+++ b/src/test/java/eu/dissco/orchestration/backend/security/JwtAuthConverterTest.java
@@ -0,0 +1,58 @@
+package eu.dissco.orchestration.backend.security;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.security.oauth2.jwt.Jwt;
+
+@ExtendWith(MockitoExtension.class)
+class JwtAuthConverterTest {
+
+  private JwtAuthConverter converter;
+
+  @BeforeEach
+  void setup() {
+    converter = new JwtAuthConverter();
+  }
+
+  @Test
+  void testEmptyToken() {
+    // Given
+    var jwt = new Jwt("SomeRandomStringWithTheFullValue", Instant.now(), Instant.now(),
+        Map.of("kid", "SomeRandom", "typ", "JWT", "alg", "RS256"),
+        Map.of("sub", "adf294ba-bb03-4962-8042-a37f1648458e"));
+
+    // When
+    var token = converter.convert(jwt);
+
+    // Then
+    assertThat(token.isAuthenticated()).isTrue();
+    assertThat(token.getName()).isEqualTo("adf294ba-bb03-4962-8042-a37f1648458e");
+    assertThat(token.getAuthorities()).isEmpty();
+  }
+
+  @Test
+  void testTokenRoles() {
+    // Given
+    var jwt = new Jwt("SomeRandomStringWithTheFullValue", Instant.now(), Instant.now(),
+        Map.of("kid", "SomeRandom", "typ", "JWT", "alg", "RS256"),
+        Map.of("sub", "adf294ba-bb03-4962-8042-a37f1648458e",
+            "resource_access", Map.of("orchestration-service",
+                Map.of("roles", List.of("orchestration-admin")))));
+
+    // When
+    var token = converter.convert(jwt);
+
+    // Then
+    assertThat(token.isAuthenticated()).isTrue();
+    assertThat(token.getName()).isEqualTo("adf294ba-bb03-4962-8042-a37f1648458e");
+    assertThat(token.getAuthorities()).hasSize(1);
+  }
+
+}