Jetty GzipHandler resource leak before v12.0.31/12.1.0 due to JDK Inflater
CVE-2026-1605 Published on March 5, 2026

In Eclipse Jetty, versions 12.0.0-12.0.31 and 12.1.0-12.0.5, class GzipHandler exposes a vulnerability when a compressed HTTP request, with Content-Encoding: gzip, is processed and the corresponding response is not compressed. This happens because the JDK Inflater is allocated for decompressing the request, but it is not released because the release mechanism is tied to the compressed response. In this case, since the response is not compressed, the release mechanism does not trigger, causing the leak.

Github Repository NVD

Vulnerability Analysis

CVE-2026-1605 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Types

What is a Resource Exhaustion Vulnerability?

The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CVE-2026-1605 has been classified to as a Resource Exhaustion vulnerability or weakness.

What is a Memory Leak Vulnerability?

The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is often triggered by improper handling of malformed data or unexpectedly interrupted sessions. In some languages, developers are responsible for tracking memory allocation and releasing the memory. If there are no more pointers or references to the memory, then it can no longer be tracked and identified for release.

CVE-2026-1605 has been classified to as a Memory Leak vulnerability or weakness.

Missing Release of Resource after Effective Lifetime

The software does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed. When a resource is not released after use, it can allow attackers to cause a denial of service by causing the allocation of resources without triggering their release. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.


Products Associated with CVE-2026-1605

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-1605 are published in these products:

Eclipse Jetty
 
Red Hat Jboss Enterprise Application Platform
 
Red Hat Apache Camel Hawtio
 
Red Hat Amq Broker
 
Red Hat Openshift Devspaces
 
Red Hat Ocp Tools
 
Red Hat Camel Spring Boot
 
Red Hat Service Registry
 
Red Hat Apicurio Registry
 
Red Hat Debezium
 
Red Hat Jboss Data Grid
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Jboss Fuse
 
Red Hat Jbosseapxp
 
Red Hat Jboss Enterprise Web Server
 
Red Hat Offline Knowledge Portal
 
Red Hat Jboss Enterprise Bpms Platform
 
Red Hat Satellite
 
Red Hat Single Sign On
 
Red Hat Amq Streams
 

Affected Versions

Eclipse Foundation Eclipse Jetty: Red Hat HawtIO HawtIO 4.4.0: Red Hat AMQ Broker 7.14.0: Red Hat JBoss Enterprise Application Platform 8.1: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9: Red Hat OpenShift Dev Spaces 3.28: Red Hat OpenShift Dev Spaces 3.28: Red Hat OpenShift Developer Tools and Services: Red Hat OpenShift Developer Tools and Services: Red Hat OpenShift Developer Tools and Services: Red Hat build of Apache Camel for Spring Boot 4: Red Hat build of Apicurio Registry 2: Red Hat build of Apicurio Registry 3: Red Hat build of Debezium 2: Red Hat build of Debezium 3: Red Hat Data Grid 8: Red Hat Enterprise Linux 7: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Fuse 7: Red Hat JBoss Enterprise Application Platform 7: Red Hat JBoss Enterprise Application Platform Expansion Pack: Red Hat JBoss Web Server 6: Red Hat Offline Knowledge Portal: Red Hat Process Automation 7: Red Hat Satellite 6: Red Hat Satellite 6: Red Hat Single Sign-On 7: Red Hat streams for Apache Kafka 2: Red Hat streams for Apache Kafka 3:

Vulnerable Packages

The following package name and versions may be associated with CVE-2026-1605

Package Manager Vulnerable Package Versions Fixed In
maven org.eclipse.jetty:jetty-server >= 12.0.0, <= 12.0.31 12.0.32
maven org.eclipse.jetty:jetty-server >= 12.1.0, <= 12.1.5 12.1.6

Exploit Probability

EPSS
0.37%
Percentile
28.39%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.