diff --git a/spring-core/src/main/java/org/springframework/util/AntPathMatcher.java b/spring-core/src/main/java/org/springframework/util/AntPathMatcher.java
index 99792561364..d304f08d2c0 100644
--- a/spring-core/src/main/java/org/springframework/util/AntPathMatcher.java
+++ b/spring-core/src/main/java/org/springframework/util/AntPathMatcher.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -78,7 +78,7 @@ public class AntPathMatcher implements PathMatcher {
 
 	private static final int CACHE_TURNOFF_THRESHOLD = 65536;
 
-	private static final Pattern VARIABLE_PATTERN = Pattern.compile("\\{[^/]+?}");
+	private static final Pattern VARIABLE_PATTERN = Pattern.compile("\\{[^/]+?\\}");
 
 	private static final char[] WILDCARD_CHARS = {'*', '?', '{'};
 
@@ -642,7 +642,7 @@ public class AntPathMatcher implements PathMatcher {
 	 */
 	protected static class AntPathStringMatcher {
 
-		private static final Pattern GLOB_PATTERN = Pattern.compile("\\?|\\*|\\{((?:\\{[^/]+?}|[^/{}]|\\\\[{}])+?)}");
+		private static final Pattern GLOB_PATTERN = Pattern.compile("\\?|\\*|\\{((?:\\{[^/]+?\\}|[^/{}]|\\\\[{}])+?)\\}");
 
 		private static final String DEFAULT_VARIABLE_PATTERN = "((?s).*)";
 
diff --git a/spring-test/src/main/java/org/springframework/test/context/util/TestContextResourceUtils.java b/spring-test/src/main/java/org/springframework/test/context/util/TestContextResourceUtils.java
index 632e7a90432..b931d987cf7 100644
--- a/spring-test/src/main/java/org/springframework/test/context/util/TestContextResourceUtils.java
+++ b/spring-test/src/main/java/org/springframework/test/context/util/TestContextResourceUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -47,7 +47,7 @@ public abstract class TestContextResourceUtils {
 
 	private static final String SLASH = "/";
 
-	private static final Pattern PLACEHOLDER_PATTERN = Pattern.compile(".*\\$\\{[^}]+}.*");
+	private static final Pattern PLACEHOLDER_PATTERN = Pattern.compile(".*\\$\\{[^}]+\\}.*");
 
 
 	/**
diff --git a/spring-web/src/main/java/org/springframework/web/util/UriComponents.java b/spring-web/src/main/java/org/springframework/web/util/UriComponents.java
index fd3a667cef2..7ff83bdf76d 100644
--- a/spring-web/src/main/java/org/springframework/web/util/UriComponents.java
+++ b/spring-web/src/main/java/org/springframework/web/util/UriComponents.java
@@ -48,7 +48,7 @@ import org.springframework.util.MultiValueMap;
 public abstract class UriComponents implements Serializable {
 
 	/** Captures URI template variable names. */
-	private static final Pattern NAMES_PATTERN = Pattern.compile("\\{([^/]+?)}");
+	private static final Pattern NAMES_PATTERN = Pattern.compile("\\{([^/]+?)\\}");
 
 
 	@Nullable
diff --git a/spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java b/spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java
index d378a36840a..68c98562a28 100644
--- a/spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java
+++ b/spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java
@@ -85,7 +85,7 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 
 	private static final String HOST_PATTERN = "(" + HOST_IPV6_PATTERN + "|" + HOST_IPV4_PATTERN + ")";
 
-	private static final String PORT_PATTERN = "(\\{[^}]+}?|[^/?#]*)";
+	private static final String PORT_PATTERN = "(\\{[^}]+\\}?|[^/?#]*)";
 
 	private static final String PATH_PATTERN = "([^?#]*)";
 
diff --git a/spring-web/src/main/java/org/springframework/web/util/pattern/RegexPathElement.java b/spring-web/src/main/java/org/springframework/web/util/pattern/RegexPathElement.java
index f326a87e134..cdbad924bb4 100644
--- a/spring-web/src/main/java/org/springframework/web/util/pattern/RegexPathElement.java
+++ b/spring-web/src/main/java/org/springframework/web/util/pattern/RegexPathElement.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,7 +35,7 @@ import org.springframework.web.util.pattern.PathPattern.MatchingContext;
  */
 class RegexPathElement extends PathElement {
 
-	private static final Pattern GLOB_PATTERN = Pattern.compile("\\?|\\*|\\{((?:\\{[^/]+?}|[^/{}]|\\\\[{}])+?)}");
+	private static final Pattern GLOB_PATTERN = Pattern.compile("\\?|\\*|\\{((?:\\{[^/]+?\\}|[^/{}]|\\\\[{}])+?)\\}");
 
 	private static final String DEFAULT_VARIABLE_PATTERN = "(.*)";
 
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/view/RedirectView.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/view/RedirectView.java
index 4ec3f0ecec3..50aa95ecb0c 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/view/RedirectView.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/view/RedirectView.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -53,7 +53,7 @@ import org.springframework.web.util.UriUtils;
  */
 public class RedirectView extends AbstractUrlBasedView {
 
-	private static final Pattern URI_TEMPLATE_VARIABLE_PATTERN = Pattern.compile("\\{([^/]+?)}");
+	private static final Pattern URI_TEMPLATE_VARIABLE_PATTERN = Pattern.compile("\\{([^/]+?)\\}");
 
 
 	private HttpStatus statusCode = HttpStatus.SEE_OTHER;