From 495b0af549bfea04221fc41e96b31821c8988bd0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81ngel=20G=C3=B3mez?= <angel.gomez@rws.com>
Date: Mon, 9 Mar 2026 16:22:03 +0100
Subject: [PATCH] DEV-26596 Ensure all JPEG magic numbers are valid.

---
 lib/utilities/src/mime-types.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/utilities/src/mime-types.ts b/lib/utilities/src/mime-types.ts
index f2c508fd..160e8cc6 100644
--- a/lib/utilities/src/mime-types.ts
+++ b/lib/utilities/src/mime-types.ts
@@ -9,11 +9,11 @@
 import { FileMime } from '../../enums.ts';
 
 function getMimeTypeFromHexSignature(signature: string): FileMime {
+	// All valid JPEG files start with SOI marker (FF D8) followed by FF
+	if (signature.startsWith('FFD8FF')) {
+		return FileMime.jpeg;
+	}
 	switch (signature) {
-		case 'FFD8FFDB':
-		case 'FFD8FFE0':
-		case 'FFD8FFE1':
-			return FileMime.jpeg;
 		case '89504E47':
 			return FileMime.png;
 		case '47494638':