From fb2f376103842dfdd0d58ceb2c8714f37c41c6a6 Mon Sep 17 00:00:00 2001
From: ExtReMLapin <3909752+ExtReMLapin@users.noreply.github.com>
Date: Tue, 5 Mar 2024 15:41:36 +0100
Subject: [PATCH] Prevent control characters from being served in json string

---
 grammars/json.gbnf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grammars/json.gbnf b/grammars/json.gbnf
index a9537cdf9..a8a80752e 100644
--- a/grammars/json.gbnf
+++ b/grammars/json.gbnf
@@ -15,7 +15,7 @@ array  ::=
 
 string ::=
   "\"" (
-    [^"\\] |
+    [^"\\\x7F\x00-\x1F] |
     "\\" (["\\/bfnrt] | "u" [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F]) # escapes
   )* "\"" ws