diff --git a/src/WorkflowManager/ConditionsResolver/Parser/ConditionalParameterParser.cs b/src/WorkflowManager/ConditionsResolver/Parser/ConditionalParameterParser.cs
index c0765c6e4..da89cbf5e 100644
--- a/src/WorkflowManager/ConditionsResolver/Parser/ConditionalParameterParser.cs
+++ b/src/WorkflowManager/ConditionsResolver/Parser/ConditionalParameterParser.cs
@@ -51,7 +51,7 @@ public class ConditionalParameterParser : IConditionalParameterParser
         private readonly IPayloadService _payloadService;
         private readonly IWorkflowService _workflowService;
 
-        private readonly Regex _squigglyBracketsRegex = new Regex(@"\{{(.*?)\}}");
+        private readonly Regex _squigglyBracketsRegex = new(@"\{{(.*?)\}}", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
 
         private WorkflowInstance? _workflowInstance = null;
         private string? _workflowInstanceId = null;
diff --git a/src/WorkflowManager/ConditionsResolver/Resovler/ConditionalGroup.cs b/src/WorkflowManager/ConditionsResolver/Resovler/ConditionalGroup.cs
index d10f9d0ae..389a0975b 100644
--- a/src/WorkflowManager/ConditionsResolver/Resovler/ConditionalGroup.cs
+++ b/src/WorkflowManager/ConditionsResolver/Resovler/ConditionalGroup.cs
@@ -38,13 +38,13 @@ public class ConditionalGroup
 
         public int GroupedLogical { get; set; } = 1;
 
-        public Regex FindAnds { get; } = new Regex(@"([\s]and[\s]|[\s]AND[\s]|[\s]And[\s])");
+        public Regex FindAnds { get; } = new(@"([\s]and[\s]|[\s]AND[\s]|[\s]And[\s])", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
 
-        public Regex FindOrs { get; } = new Regex(@"([\s]or[\s]|[\s]OR[\s]|[\s]Or[\s])");
+        public Regex FindOrs { get; } = new(@"([\s]or[\s]|[\s]OR[\s]|[\s]Or[\s])", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
 
-        public Regex FindBrackets { get; } = new Regex(@"((?<!\[)\()");
+        public Regex FindBrackets { get; } = new(@"((?<!\[)\()", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
 
-        public Regex FindCloseBrackets { get; } = new Regex(@"((?<!\[)\))");
+        public Regex FindCloseBrackets { get; } = new(@"((?<!\[)\))", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
 
         private string[] ParseOrs(string input) => FindOrs.SplitOnce(input);
 
diff --git a/src/WorkflowManager/WorkflowManager/Validators/WorkflowValidator.cs b/src/WorkflowManager/WorkflowManager/Validators/WorkflowValidator.cs
index c1942d524..52e21ae62 100644
--- a/src/WorkflowManager/WorkflowManager/Validators/WorkflowValidator.cs
+++ b/src/WorkflowManager/WorkflowManager/Validators/WorkflowValidator.cs
@@ -270,7 +270,7 @@ private async Task ValidateWorkflowSpec(Workflow workflow)
             }
 
             var taskIds = workflow.Tasks.Select(t => t.Id);
-            var pattern = new Regex(@"^[a-zA-Z0-9-_]+$");
+            var pattern = new Regex(@"^[a-zA-Z0-9-_]+$", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
             foreach (var taskId in taskIds)
             {
                 if (pattern.IsMatch(taskId) is false)
diff --git a/tests/UnitTests/ConditionsResolver.Tests/Resolver/RegexExtensionsTests.cs b/tests/UnitTests/ConditionsResolver.Tests/Resolver/RegexExtensionsTests.cs
index d33e668c2..d1588338f 100644
--- a/tests/UnitTests/ConditionsResolver.Tests/Resolver/RegexExtensionsTests.cs
+++ b/tests/UnitTests/ConditionsResolver.Tests/Resolver/RegexExtensionsTests.cs
@@ -30,7 +30,7 @@ public class RegexExtensionsTests
         [InlineData(new string[] { "test ", "( test( test" }, "test ( test( test")]
         public void Regex_WhenSplitOnce_ShouldOnlyHaveArrayOfTwo(string[] expected, string stringToSplit)
         {
-            var regexFindBrackets = new Regex(@"((?<!\[)\()");
+            var regexFindBrackets = new Regex(@"((?<!\[)\()", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
             var result = regexFindBrackets.SplitOnce(stringToSplit);
             Assert.Equal(expected, result);
             Assert.Equal(2, result.Length);
@@ -40,7 +40,7 @@ public void Regex_WhenSplitOnce_ShouldOnlyHaveArrayOfTwo(string[] expected, stri
         public void Regex_WhenSplitOnceProvidedNullInput_ShouldThrowException()
         {
             var expectedErrorMessage = "Value cannot be null. (Parameter 'input')";
-            var regexFindBrackets = new Regex(@"((?<!\[)\()");
+            var regexFindBrackets = new Regex(@"((?<!\[)\()", RegexOptions.None, matchTimeout: TimeSpan.FromSeconds(2));
 #pragma warning disable CS8625 // Cannot convert null literal to non-nullable reference type.
             var exception = Assert.Throws<ArgumentNullException>(() => regexFindBrackets.SplitOnce(null));
 #pragma warning restore CS8625 // Cannot convert null literal to non-nullable reference type.