From 49948d601c78a5e9b6b1c9028107117cfddf79fa Mon Sep 17 00:00:00 2001
From: eschcam <cameron.scholes@est.tech>
Date: Thu, 5 Feb 2026 11:03:53 +0000
Subject: [PATCH 1/2] [Hotfix] Update lz4-java to 1.10.3

---
 flink-formats/flink-avro-confluent-registry/pom.xml | 4 ++++
 flink-runtime/pom.xml                               | 2 +-
 pom.xml                                             | 4 ++--
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/flink-formats/flink-avro-confluent-registry/pom.xml b/flink-formats/flink-avro-confluent-registry/pom.xml
index d483f3a7688b8..65d3ff7c020dc 100644
--- a/flink-formats/flink-avro-confluent-registry/pom.xml
+++ b/flink-formats/flink-avro-confluent-registry/pom.xml
@@ -60,6 +60,10 @@ under the License.
 					<groupId>org.lz4</groupId>
 					<artifactId>lz4-java</artifactId>
 				</exclusion>
+				<exclusion>
+					<groupId>at.yawk.lz4</groupId>
+					<artifactId>lz4-java</artifactId>
+				</exclusion>
 				<exclusion>
 					<groupId>io.swagger</groupId>
 					<artifactId>swagger-core</artifactId>
diff --git a/flink-runtime/pom.xml b/flink-runtime/pom.xml
index a9242a505b24e..6ec4ed68aca03 100644
--- a/flink-runtime/pom.xml
+++ b/flink-runtime/pom.xml
@@ -238,7 +238,7 @@ under the License.
 
 		<!-- Lz4 compression library -->
 		<dependency>
-			<groupId>org.lz4</groupId>
+			<groupId>at.yawk.lz4</groupId>
 			<artifactId>lz4-java</artifactId>
 		</dependency>
 
diff --git a/pom.xml b/pom.xml
index b48802e3573e8..2bd47d01bdccb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -165,7 +165,7 @@ under the License.
 		<protoc.version>4.32.1</protoc.version>
 		<okhttp.version>3.14.9</okhttp.version>
 		<testcontainers.version>1.21.4</testcontainers.version>
-		<lz4.version>1.8.0</lz4.version>
+		<lz4.version>1.10.3</lz4.version>
 		<commons.io.version>2.15.1</commons.io.version>
 		<japicmp.skip>false</japicmp.skip>
 		<flink.convergence.phase>validate</flink.convergence.phase>
@@ -581,7 +581,7 @@ under the License.
 			</dependency>
 
 			<dependency>
-				<groupId>org.lz4</groupId>
+				<groupId>at.yawk.lz4</groupId>
 				<artifactId>lz4-java</artifactId>
 				<version>${lz4.version}</version>
 			</dependency>

From 32d10650f76ea6af52ad901a7af3c50acf7a1d33 Mon Sep 17 00:00:00 2001
From: eschcam <cameron.scholes@est.tech>
Date: Fri, 20 Feb 2026 14:37:36 +0000
Subject: [PATCH 2/2] Update lz4-java in NOTICE file

---
 flink-dist/src/main/resources/META-INF/NOTICE | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flink-dist/src/main/resources/META-INF/NOTICE b/flink-dist/src/main/resources/META-INF/NOTICE
index b665d2d82ce4e..4913adfe9e3a6 100644
--- a/flink-dist/src/main/resources/META-INF/NOTICE
+++ b/flink-dist/src/main/resources/META-INF/NOTICE
@@ -17,7 +17,7 @@ This project bundles the following dependencies under the Apache Software Licens
 - org.apache.commons:commons-math3:3.6.1
 - org.apache.commons:commons-text:1.10.0
 - org.javassist:javassist:3.24.0-GA
-- org.lz4:lz4-java:1.8.0
+- at.yawk.lz4:lz4-java:1.10.3
 - org.objenesis:objenesis:3.4
 - org.xerial.snappy:snappy-java:1.1.10.7
 - tools.profiler:async-profiler:2.9