CVE-2026-59919 - Vulnerability Details - OpenCVE

A flaw was found in the netty-codec-haproxy component, part of the Netty network application framework. This vulnerability allows a remote attacker to perform protocol-level injection attacks by crafting malformed HAProxy protocol frames that contain embedded carriage return (CR) and line feed (LF) sequences. This can lead to the injection of arbitrary content, potentially disrupting network communication or enabling further attacks.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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Project Subscriptions

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Advisories

Source	ID	Title
Github GHSA	GHSA-wh89-7897-x99h	Netty: HAProxy V1 Protocol CRLF Injection via AF_UNIX Address

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://nvd.nist.gov/vuln/detail/CVE-2026-59919
https://www.cve.org/CVERecord?id=CVE-2026-59919

History

Tue, 28 Jul 2026 00:15:00 +0000

Type	Values Removed	Values Added
Description		A flaw was found in the netty-codec-haproxy component, part of the Netty network application framework. This vulnerability allows a remote attacker to perform protocol-level injection attacks by crafting malformed HAProxy protocol frames that contain embedded carriage return (CR) and line feed (LF) sequences. This can lead to the injection of arbitrary content, potentially disrupting network communication or enabling further attacks.
Title		io.netty/netty-codec-haproxy: Netty: Improper CR/LF neutralization in netty-codec-haproxy
Weaknesses		CWE-93
References		https://nvd.nist.gov/vuln/detail/CVE-2026-59919 https://www.cve.org/CVERecord?id=CVE-2026-59919
Metrics	threat_severity `None`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}` threat_severity `Moderate`

Projects

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MITRE

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Vulnrichment

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NVD

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Redhat

Severity : Moderate

Publid Date: 2026-07-09T00:00:00Z

Links: CVE-2026-59919 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

CWE-93

{"bugzilla": {"description": "io.netty/netty-codec-haproxy: Netty: Improper CR/LF neutralization in netty-codec-haproxy", "id": "2507483", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507483"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-93", "details": ["A flaw was found in the netty-codec-haproxy component, part of the Netty network application framework. This vulnerability allows a remote attacker to perform protocol-level injection attacks by crafting malformed HAProxy protocol frames that contain embedded carriage return (CR) and line feed (LF) sequences. This can lead to the injection of arbitrary content, potentially disrupting network communication or enabling further attacks."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-59919", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-ekb-dispatcher-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-ekb-receiver-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-ddb-streams-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-s3-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-s3-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-sns-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-sqs-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-sqs-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-log-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-eventing-integrations-timer-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:camel_quarkus:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat build of Apache Camel 4 for Quarkus 3"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:apache_camel_hawtio:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat build of Apache Camel - HawtIO 4"}, {"cpe": "cpe:/a:redhat:apicurio_registry:3", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat build of Apicurio Registry 3"}, {"cpe": "cpe:/a:redhat:debezium:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat build of Debezium 3"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhbk-keycloak-rhel9-operator/rhbk-keycloak-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhbk-openshift-rhel9/rhbk-openshift-rhel9", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhbk-rhel9-operator/rhbk-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:quarkus:3", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat build of Quarkus"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "eap74-els-openjdk11-openshift-rhel8/eap74-els-openjdk11-openshift-rhel8", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "eap74-els-openjdk17-openshift-rhel8/eap74-els-openjdk17-openshift-rhel8", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "eap74-els-openjdk8-openshift-rhel8/eap74-els-openjdk8-openshift-rhel8", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "jboss-eap-7-eap74-els-openjdk17-openshift-rhel8/jboss-eap-7-eap74-els-openjdk17-openshift-rhel8", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "jboss-eap-7-eap74-els-openjdk8-openshift-rhel8/jboss-eap-7-eap74-els-openjdk8-openshift-rhel8", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhoai/odh-trustyai-service-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "devspaces/multicluster-redirector-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "Red Hat Single Sign-On 7"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-haproxy", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-07-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-59919\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-59919"], "statement": "This Moderate flaw in `netty-codec-haproxy` allows for protocol-level injection attacks due to improper neutralization of CR/LF sequences. An attacker could exploit this by crafting malformed HAProxy protocol frames to inject arbitrary content, potentially leading to unexpected behavior or further attacks within the affected application's protocol handling. This vulnerability impacts multiple Red Hat products that incorporate the `netty-codec-haproxy` component.", "threat_severity": "Moderate"}