From 402f942d54084fa537ca7b00cafe4a3077f694b7 Mon Sep 17 00:00:00 2001
From: Jonathan Berrewaerts <jonathan.berrewaerts@approach-cyber.com>
Date: Wed, 18 Mar 2026 16:06:19 +0100
Subject: [PATCH] Return 400 in case of parsing error

---
 apache2/apache2_io.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/apache2/apache2_io.c b/apache2/apache2_io.c
index 8deeb01c9..33788ab53 100644
--- a/apache2/apache2_io.c
+++ b/apache2/apache2_io.c
@@ -354,6 +354,9 @@ apr_status_t read_request_body(modsec_rec *msr, char **error_msg) {
     if (rcbe == -5) {
         return HTTP_REQUEST_ENTITY_TOO_LARGE;
     }
+    if (rcbe == -2) {
+        return HTTP_BAD_REQUEST;
+    }
     if (rcbe < 0) {
         return HTTP_INTERNAL_SERVER_ERROR;
     }