diff --git a/frontend/src/i18n/en.json b/frontend/src/i18n/en.json
index 9272cff4..d7299444 100644
--- a/frontend/src/i18n/en.json
+++ b/frontend/src/i18n/en.json
@@ -102,6 +102,7 @@
     "username": "Username",
     "usernameTaken": "Username already taken",
     "wrongCredentials": "Wrong credentials",
+    "passwordTooShort": "Password must be at least {min} characters",
     "logout_reasons": {
       "inactivity": "You have been logged out due to inactivity."
     }
diff --git a/frontend/src/utils/auth.ts b/frontend/src/utils/auth.ts
index 57e665ea..dcd1cdc5 100644
--- a/frontend/src/utils/auth.ts
+++ b/frontend/src/utils/auth.ts
@@ -101,7 +101,11 @@ export async function signup(username: string, password: string) {
   });
 
   if (res.status !== 200) {
-    throw new StatusError(`${res.status} ${res.statusText}`, res.status);
+    const body = await res.text();
+    throw new StatusError(
+      body || `${res.status} ${res.statusText}`,
+      res.status
+    );
   }
 }
 
diff --git a/frontend/src/views/Login.vue b/frontend/src/views/Login.vue
index c0e78225..c7f64a5b 100644
--- a/frontend/src/views/Login.vue
+++ b/frontend/src/views/Login.vue
@@ -112,6 +112,13 @@ const submit = async (event: Event) => {
         error.value = t("login.usernameTaken");
       } else if (e.status === 403) {
         error.value = t("login.wrongCredentials");
+      } else if (e.status === 400) {
+        const match = e.message.match(/minimum length is (\d+)/);
+        if (match) {
+          error.value = t("login.passwordTooShort", { min: match[1] });
+        } else {
+          error.value = e.message;
+        }
       } else {
         $showError(e);
       }