diff --git a/packages/core/src/network/error-parsing.ts b/packages/core/src/network/error-parsing.ts
index 4646f071..832e4314 100644
--- a/packages/core/src/network/error-parsing.ts
+++ b/packages/core/src/network/error-parsing.ts
@@ -1,14 +1,51 @@
 import {messageStore} from "../stores/message";
 
-/** Format attendu des erreurs JSON issues du serveur. */
-export interface ErrorResponse {
-    [key: string]: any;
+export interface ProblemDetail {
+    /**
+     * @description A URI reference [RFC3986] that identifies the problem type.
+     * This specification encourages that, when dereferenced, it provide human-readable documentation
+     *  for the problem type (e.g., using HTML [W3C.REC-html5-20141028]).
+     *  When this member is not present, its value is assumed to be "type" (string) - "about:blank".
+     */
+    type?: string | "about:blank";
+
+    /**
+     * @description (number) - The HTTP status code ([RFC7231], Section 6)
+     * generated by the origin server for this occurrence of the problem.
+     */
     status: number;
+
+    /**
+     * @description A short, human-readable summary of the problem
+     *  type.  It SHOULD NOT change from occurrence to occurrence of the
+     *  problem, except for purposes of localization (e.g., using
+     *  proactive content negotiation; see [RFC7231], Section 3.4).
+     */
+    title?: string;
+
+    /**
+     * @description A human-readable explanation specific to
+     * this occurrence of the problem.
+     */
+    detail?: string;
+
+    /**
+     * @description A URI reference that identifies the specific occurrence of the problem.
+     * It may or may not yield further information if dereferenced.
+     */
+    instance?: string;
+
+    /**
+     * @description Problem type definitions MAY extend the problem details object with additional members.
+     */
+    [key: string]: any;
 }
 
+/** Format attendu des erreurs JSON issues du serveur. */
+export interface ErrorResponse extends ProblemDetail {}
+
 /** Erreur JSON issue du serveur, à laquelle on a ajouté des infos issues du parsing. */
-export interface ManagedErrorResponse {
-    [key: string]: any;
+export interface ManagedErrorResponse extends ErrorResponse {
     /** Erreurs détectées dans l'erreur serveur. */
     $parsedErrors: {
         /** Erreurs globales. */
@@ -32,3 +69,18 @@ export function manageResponseErrors($status: number, response: ErrorResponse):
         }
     };
 }
+
+/**
+ * Parse une réponse du serveur pour enregistrer les erreurs.
+ * @param $status Statut HTTP de la réponse.
+ * @param response Corps de la réponse.
+ */
+export function manageProblemDetail(response: ProblemDetail): ManagedErrorResponse {
+    return {
+        ...response,
+        $status: response.status,
+        $parsedErrors: {
+            globals: messageStore.addMessages(response)
+        }
+    };
+}
diff --git a/packages/core/src/network/fetch.ts b/packages/core/src/network/fetch.ts
index 03ce98b7..1706cc77 100644
--- a/packages/core/src/network/fetch.ts
+++ b/packages/core/src/network/fetch.ts
@@ -3,7 +3,7 @@ import {isObject, merge, toPairs} from "lodash";
 
 import {config} from "../utils";
 
-import {ManagedErrorResponse, manageResponseErrors} from "./error-parsing";
+import {ManagedErrorResponse, manageProblemDetail, manageResponseErrors} from "./error-parsing";
 import {HttpMethod, requestStore} from "./store";
 
 /**
@@ -77,6 +77,9 @@ export async function coreFetch(
                     return await Promise.reject<ManagedErrorResponse>(
                         manageResponseErrors(response.status, await response.json())
                     );
+                } else if (contentType?.includes("application/problem+json")) {
+                    // Pour une erreur JSON, on la parse pour trouver et enregistrer les erreurs "attendues".
+                    return await Promise.reject<ManagedErrorResponse>(manageProblemDetail(await response.json()));
                 } else {
                     // Sinon, on renvoie le body de la réponse sous format texte (faute de mieux).
                     console.error(`Une erreur ${response.status} est survenue lors de l'appel à "${url}".`);