diff --git a/buildSrc/src/main/java/org/springframework/build/CheckstyleConventions.java b/buildSrc/src/main/java/org/springframework/build/CheckstyleConventions.java
index feda5aa59a..5e652669f8 100644
--- a/buildSrc/src/main/java/org/springframework/build/CheckstyleConventions.java
+++ b/buildSrc/src/main/java/org/springframework/build/CheckstyleConventions.java
@@ -63,8 +63,8 @@ public class CheckstyleConventions {
 		project.getPlugins().apply(NoHttpPlugin.class);
 		NoHttpExtension noHttp = project.getExtensions().getByType(NoHttpExtension.class);
 		noHttp.setAllowlistFile(project.file("src/nohttp/allowlist.lines"));
-		noHttp.getSource().exclude("**/test-output/**", "**/.settings/**",
-				"**/.classpath", "**/.project", "**/.gradle/**", "**/node_modules/**", "**/spring-jcl/**", "buildSrc/**");
+		noHttp.getSource().exclude("**/test-output/**", "**/.settings/**", "**/.classpath",
+				"**/.project", "**/.gradle/**", "**/node_modules/**", "**/spring-jcl/**", "buildSrc/build/**");
 		List<String> buildFolders = List.of("bin", "build", "out");
 		project.allprojects(subproject -> {
 			Path rootPath = project.getRootDir().toPath();
diff --git a/spring-web/src/main/java/org/springframework/http/client/reactive/HttpComponentsClientHttpResponse.java b/spring-web/src/main/java/org/springframework/http/client/reactive/HttpComponentsClientHttpResponse.java
index 54c5da2c05..98021ce6dd 100644
--- a/spring-web/src/main/java/org/springframework/http/client/reactive/HttpComponentsClientHttpResponse.java
+++ b/spring-web/src/main/java/org/springframework/http/client/reactive/HttpComponentsClientHttpResponse.java
@@ -90,6 +90,7 @@ class HttpComponentsClientHttpResponse extends AbstractClientHttpResponse {
 										.maxAge(getMaxAgeSeconds(cookie))
 										.secure(cookie.isSecure())
 										.httpOnly(cookie.containsAttribute("httponly"))
+										.partitioned(cookie.containsAttribute("partitioned"))
 										.sameSite(cookie.getAttribute("samesite"))
 										.build());
 					}
diff --git a/spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpResponse.java b/spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpResponse.java
index 3d6ae019fd..29d4aab1e4 100644
--- a/spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpResponse.java
+++ b/spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpResponse.java
@@ -134,6 +134,7 @@ class ReactorClientHttpResponse implements ClientHttpResponse {
 								.secure(cookie.isSecure())
 								.httpOnly(cookie.isHttpOnly())
 								.sameSite(getSameSite(cookie))
+								.partitioned(getPartitioned(cookie))
 								.build()));
 		return CollectionUtils.unmodifiableMultiValueMap(result);
 	}
@@ -145,6 +146,13 @@ class ReactorClientHttpResponse implements ClientHttpResponse {
 		return null;
 	}
 
+	private static boolean getPartitioned(Cookie cookie) {
+		if (cookie instanceof DefaultCookie defaultCookie) {
+			return defaultCookie.isPartitioned();
+		}
+		return false;
+	}
+
 	/**
 	 * Called by {@link ReactorClientHttpConnector} when a cancellation is detected
 	 * but the content has not been subscribed to. If the subscription never
diff --git a/spring-web/src/test/java/org/springframework/http/client/reactive/ClientHttpConnectorTests.java b/spring-web/src/test/java/org/springframework/http/client/reactive/ClientHttpConnectorTests.java
index dcd98a835f..7095feb315 100644
--- a/spring-web/src/test/java/org/springframework/http/client/reactive/ClientHttpConnectorTests.java
+++ b/spring-web/src/test/java/org/springframework/http/client/reactive/ClientHttpConnectorTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -41,6 +41,7 @@ import okhttp3.mockwebserver.RecordedRequest;
 import okio.Buffer;
 import org.apache.hc.client5.http.impl.async.HttpAsyncClientBuilder;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Assumptions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Named;
 import org.junit.jupiter.api.Test;
@@ -201,6 +202,25 @@ class ClientHttpConnectorTests {
 				.verifyComplete();
 	}
 
+	@ParameterizedConnectorTest
+	void partitionedCookieSupport(ClientHttpConnector connector) {
+		Assumptions.assumeFalse(connector instanceof JettyClientHttpConnector, "Jetty client does not support partitioned cookies");
+		Assumptions.assumeFalse(connector instanceof JdkClientHttpConnector, "JDK client does not support partitioned cookies");
+		prepareResponse(response -> {
+			response.setResponseCode(200);
+			response.addHeader("Set-Cookie", "id=test; Partitioned;");
+		});
+		Mono<ClientHttpResponse> futureResponse =
+				connector.connect(HttpMethod.GET, this.server.url("/").uri(), ReactiveHttpOutputMessage::setComplete);
+		StepVerifier.create(futureResponse)
+				.assertNext(response -> {
+							assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
+							assertThat(response.getCookies().getFirst("id").isPartitioned()).isTrue();
+						}
+				)
+				.verifyComplete();
+	}
+
 	@Test
 	void disableCookieWithHttpComponents() {
 		ClientHttpConnector connector = new HttpComponentsClientHttpConnector(