CVE-2026-48006

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state (`depths` field) but defines no `channelInactive`, `handlerRemoved`, or `exceptionCaught` method to release them when the pipeline tears down. Because the leaked buffers are slices of `PooledByteBufAllocator` chunks, they prevent those chunks from being returned to the JVM-wide direct-memory pool. Repeated connection churn by any network peer monotonically drains this shared pool, eventually causing allocation failures on all Netty channels in the process. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/netty/netty/releases/tag/netty-4.1.135.Final	Release Notes
https://github.com/netty/netty/releases/tag/netty-4.2.15.Final	Release Notes
https://github.com/netty/netty/security/advisories/GHSA-6jv9-x5w9-2ccm	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:37390
https://access.redhat.com/errata/RHSA-2026:41951
https://access.redhat.com/errata/RHSA-2026:50085
https://access.redhat.com/errata/RHSA-2026:53644
https://access.redhat.com/errata/RHSA-2026:53806
https://access.redhat.com/security/cve/CVE-2026-48006
https://bugzilla.redhat.com/show_bug.cgi?id=2488433
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48006.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:netty:netty::::::::
	cpe:2.3:a:netty:netty::::::::

History

No history.

Information

Published : 2026-06-12 16:16

Updated : 2026-09-09 13:20

NVD link : CVE-2026-48006

Mitre link : CVE-2026-48006

CVE.ORG link : CVE-2026-48006

JSON object : View

Products Affected

netty

netty

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

CWE-772

Missing Release of Resource after Effective Lifetime

{"id": "CVE-2026-48006", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48006", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-12T16:40:23.259554Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "netty", "product": "netty", "versions": [{"status": "affected", "version": ">= 4.2.0.Final, < 4.2.15.Final"}, {"status": "affected", "version": "< 4.1.135.Final"}]}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/a:redhat:apache_camel_spring_boot:4.18"], "vendor": "Red Hat", "product": "Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16", "versions": [{"status": "unaffected", "version": "codec-redis", "lessThan": "*", "versionType": "rpm"}], "packageName": "netty", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_data_grid:8"], "vendor": "Red Hat", "product": "Red Hat Data Grid 8.6.2", "versions": [{"status": "unaffected", "version": "codec-redis", "lessThan": "*", "versionType": "rpm"}], "packageName": "netty", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4.25", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.16.0-22.redhat_00057.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-activemq-artemis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.3.14-11.SP11_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-glassfish-jsf", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:1.5.26-2.Final_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-ironjacamar", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.18.8-1.redhat_00003.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jackson-annotations", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.18.8-1.redhat_00003.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jackson-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.18.8-1.redhat_00003.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jackson-databind", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.18.8-1.redhat_00003.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jackson-jaxrs-providers", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.18.8-1.redhat_00003.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jackson-modules-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.18.8-1.redhat_00003.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jackson-modules-java8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:5.0.31-3.SP2_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jboss-remoting", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:1.10.0-46.Final_redhat_00044.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-jboss-server-migration", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:4.1.135-1.Final_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-netty", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:4.1.135-1.Final_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-netty-transport-native-epoll", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.5.5-30.SP12_redhat_00020.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-picketlink-bindings", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.5.5-24.SP12_redhat_00016.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-picketlink-federation", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:2.2.40-2.SP3_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-undertow", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "versions": [{"status": "unaffected", "version": "0:7.4.25-2.GA_redhat_00001.1.el7eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap7-wildfly", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform_xp:6.0"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "versions": [{"status": "unaffected", "version": "codec-redis", "lessThan": "*", "versionType": "rpm"}], "packageName": "netty", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_fuse:7"], "vendor": "Red Hat", "product": "Red Hat Fuse 7", "packageName": "netty-codec-redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "packageName": "netty-codec-redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "netty-codec-redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7"], "vendor": "Red Hat", "product": "Red Hat Single Sign-On 7", "packageName": "netty-codec-redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-06-12T16:16:30.450", "references": [{"url": "https://github.com/netty/netty/releases/tag/netty-4.1.135.Final", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/netty/netty/security/advisories/GHSA-6jv9-x5w9-2ccm", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:37390", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:41951", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:50085", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:53644", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:53806", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-48006", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488433", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48006.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-401"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-772"}]}], "descriptions": [{"lang": "en", "value": "Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state (`depths` field) but defines no `channelInactive`, `handlerRemoved`, or `exceptionCaught` method to release them when the pipeline tears down. Because the leaked buffers are slices of `PooledByteBufAllocator` chunks, they prevent those chunks from being returned to the JVM-wide direct-memory pool. Repeated connection churn by any network peer monotonically drains this shared pool, eventually causing allocation failures on all Netty channels in the process. Versions 4.1.135.Final and 4.2.15.Final patch the issue."}], "lastModified": "2026-09-09T13:20:20.877", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3097D962-A32D-4467-AAE7-F4CBA3A349D2", "versionEndExcluding": "4.1.135"}, {"criteria": "cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "413D4611-A46C-4BE4-AB2F-D86282F65984", "versionEndExcluding": "4.2.15", "versionStartIncluding": "4.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}