diff --git a/server/lib/validators.ts b/server/lib/validators.ts
index f4be6277..675c0809 100644
--- a/server/lib/validators.ts
+++ b/server/lib/validators.ts
@@ -11,7 +11,7 @@ export function isValidIP(ip: string): boolean {
 export function isValidUrlGlobPattern(pattern: string): boolean {
     // Remove leading slash if present
     pattern = pattern.startsWith("/") ? pattern.slice(1) : pattern;
-
+    
     // Empty string is not valid
     if (!pattern) {
         return false;
@@ -19,12 +19,12 @@ export function isValidUrlGlobPattern(pattern: string): boolean {
 
     // Split path into segments
     const segments = pattern.split("/");
-
+    
     // Check each segment
     for (let i = 0; i < segments.length; i++) {
         const segment = segments[i];
-
-        // Empty segments are not allowed (double slashes)
+        
+        // Empty segments are not allowed (double slashes), except at the end
         if (!segment && i !== segments.length - 1) {
             return false;
         }
@@ -34,11 +34,30 @@ export function isValidUrlGlobPattern(pattern: string): boolean {
             return false;
         }
 
-        // Check for invalid characters
-        if (!/^[a-zA-Z0-9_.*-]*$/.test(segment)) {
-            return false;
+        // Check each character in the segment
+        for (let j = 0; j < segment.length; j++) {
+            const char = segment[j];
+            
+            // Check for percent-encoded sequences
+            if (char === "%" && j + 2 < segment.length) {
+                const hex1 = segment[j + 1];
+                const hex2 = segment[j + 2];
+                if (!/^[0-9A-Fa-f]$/.test(hex1) || !/^[0-9A-Fa-f]$/.test(hex2)) {
+                    return false;
+                }
+                j += 2; // Skip the next two characters
+                continue;
+            }
+
+            // Allow:
+            // - unreserved (A-Z a-z 0-9 - . _ ~)
+            // - sub-delims (! $ & ' ( ) * + , ; =)
+            // - @ : for compatibility with some systems
+            if (!/^[A-Za-z0-9\-._~!$&'()*+,;=@:]$/.test(char)) {
+                return false;
+            }
         }
     }
-
+    
     return true;
-}
+}
\ No newline at end of file