1 files changed, 12 insertions, 2 deletions
diff --git a/node_modules/undici/lib/core/request.js b/node_modules/undici/lib/core/request.js
index 7800303..4da6066 100644
--- a/node_modules/undici/lib/core/request.js
+++ b/node_modules/undici/lib/core/request.js
@@ -66,6 +66,10 @@ class Request {
       throw new InvalidArgumentError('upgrade must be a string')
     }
 
+    if (upgrade && !isValidHeaderValue(upgrade)) {
+      throw new InvalidArgumentError('invalid upgrade header')
+    }
+
     if (headersTimeout != null && (!Number.isFinite(headersTimeout) || headersTimeout < 0)) {
       throw new InvalidArgumentError('invalid headersTimeout')
     }
@@ -360,13 +364,19 @@ function processHeader (request, key, val) {
     val = `${val}`
   }
 
-  if (request.host === null && headerName === 'host') {
+  if (headerName === 'host') {
+    if (request.host !== null) {
+      throw new InvalidArgumentError('duplicate host header')
+    }
     if (typeof val !== 'string') {
       throw new InvalidArgumentError('invalid host header')
     }
     // Consumed by Client
     request.host = val
-  } else if (request.contentLength === null && headerName === 'content-length') {
+  } else if (headerName === 'content-length') {
+    if (request.contentLength !== null) {
+      throw new InvalidArgumentError('duplicate content-length header')
+    }
     request.contentLength = parseInt(val, 10)
     if (!Number.isFinite(request.contentLength)) {
       throw new InvalidArgumentError('invalid content-length header')