diff --git a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginAuthenticationProvider.java b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginAuthenticationProvider.java
index a82d320e53..5aea261f9d 100644
--- a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginAuthenticationProvider.java
+++ b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginAuthenticationProvider.java
@@ -110,7 +110,7 @@ public class OAuth2LoginAuthenticationProvider implements AuthenticationProvider
 		}
 		catch (OAuth2AuthorizationException ex) {
 			OAuth2Error oauth2Error = ex.getError();
-			throw new OAuth2AuthenticationException(oauth2Error, oauth2Error.toString());
+			throw new OAuth2AuthenticationException(oauth2Error, oauth2Error.toString(), ex);
 		}
 		OAuth2AccessToken accessToken = authorizationCodeAuthenticationToken.getAccessToken();
 		Map<String, Object> additionalParameters = authorizationCodeAuthenticationToken.getAdditionalParameters();
diff --git a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginReactiveAuthenticationManager.java b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginReactiveAuthenticationManager.java
index e4b72951b5..fc91427d5a 100644
--- a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginReactiveAuthenticationManager.java
+++ b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/authentication/OAuth2LoginReactiveAuthenticationManager.java
@@ -99,7 +99,7 @@ public class OAuth2LoginReactiveAuthenticationManager implements ReactiveAuthent
 			}
 			return this.authorizationCodeManager.authenticate(token)
 					.onErrorMap(OAuth2AuthorizationException.class,
-							(e) -> new OAuth2AuthenticationException(e.getError(), e.getError().toString()))
+							(e) -> new OAuth2AuthenticationException(e.getError(), e.getError().toString(), e))
 					.cast(OAuth2AuthorizationCodeAuthenticationToken.class).flatMap(this::onSuccess);
 		});
 	}
diff --git a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeAuthenticationProvider.java b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeAuthenticationProvider.java
index 9c956fcfcc..6c246d31c0 100644
--- a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeAuthenticationProvider.java
+++ b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeAuthenticationProvider.java
@@ -173,7 +173,7 @@ public class OidcAuthorizationCodeAuthenticationProvider implements Authenticati
 		}
 		catch (OAuth2AuthorizationException ex) {
 			OAuth2Error oauth2Error = ex.getError();
-			throw new OAuth2AuthenticationException(oauth2Error, oauth2Error.toString());
+			throw new OAuth2AuthenticationException(oauth2Error, oauth2Error.toString(), ex);
 		}
 	}
 
diff --git a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeReactiveAuthenticationManager.java b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeReactiveAuthenticationManager.java
index 4d536afb5a..6dd88bd612 100644
--- a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeReactiveAuthenticationManager.java
+++ b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/OidcAuthorizationCodeReactiveAuthenticationManager.java
@@ -142,7 +142,7 @@ public class OidcAuthorizationCodeReactiveAuthenticationManager implements React
 			return this.accessTokenResponseClient.getTokenResponse(authzRequest).flatMap(
 					(accessTokenResponse) -> authenticationResult(authorizationCodeAuthentication, accessTokenResponse))
 					.onErrorMap(OAuth2AuthorizationException.class,
-							(e) -> new OAuth2AuthenticationException(e.getError(), e.getError().toString()))
+							(e) -> new OAuth2AuthenticationException(e.getError(), e.getError().toString(), e))
 					.onErrorMap(JwtException.class, (e) -> {
 						OAuth2Error invalidIdTokenError = new OAuth2Error(INVALID_ID_TOKEN_ERROR_CODE, e.getMessage(),
 								null);