From 74dac77adba17937fb79f5b0c98a92c2912f9e57 Mon Sep 17 00:00:00 2001
From: uNetworkingAB <110806833+uNetworkingAB@users.noreply.github.com>
Date: Mon, 24 Oct 2022 19:02:04 +0200
Subject: [PATCH] Never accept whitespace between key and colon

---
 src/HttpParser.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/HttpParser.h b/src/HttpParser.h
index b53bca5..deb043d 100644
--- a/src/HttpParser.h
+++ b/src/HttpParser.h
@@ -229,6 +229,10 @@ private:
             if (postPaddedBuffer[0] == ':' && postPaddedBuffer[1] == ' ') {
                 postPaddedBuffer += 2;
             } else {
+                /* We should not accept whitespace between key and colon */
+                if (postPaddedBuffer[0] != ':') {
+                    return 0;
+                }
                 /* Trim until value starts */
                 for (; (*postPaddedBuffer == ':' || *(unsigned char *)postPaddedBuffer < 33) && *postPaddedBuffer != '\r'; postPaddedBuffer++);
             }