{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44893","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-07T21:50:33.545Z","datePublished":"2026-06-12T14:00:25.801Z","dateUpdated":"2026-07-09T12:10:00.044Z"},"containers":{"cna":{"title":"Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length","problemTypes":[{"descriptions":[{"cweId":"CWE-703","lang":"en","description":"CWE-703: Improper Check or Handling of Exceptional Conditions","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/netty/netty/security/advisories/GHSA-cc37-9q2j-3hfv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/netty/netty/security/advisories/GHSA-cc37-9q2j-3hfv"},{"name":"https://github.com/netty/netty/releases/tag/netty-4.1.135.Final","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/releases/tag/netty-4.1.135.Final"},{"name":"https://github.com/netty/netty/releases/tag/netty-4.2.15.Final","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/releases/tag/netty-4.2.15.Final"}],"affected":[{"vendor":"netty","product":"netty","versions":[{"version":">= 4.2.0.Final, < 4.2.15.Final","status":"affected"},{"version":"< 4.1.135.Final","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-12T14:04:45.663Z"},"descriptions":[{"lang":"en","value":"Netty is a network application framework for development of protocol servers and clients. In netty-codec-haproxy prior to versions 4.1.135.Final and 4.2.15.Final, when decoding a PP2_TYPE_SSL TLV, HAProxyMessage.readNextTLV() first calls `header.retainedSlice(header.readerIndex(), length)` and only then reads the 1-byte client field and 4-byte verify field. If the attacker sets the TLV length below 5, the subsequent readByte/readInt throws IndexOutOfBoundsException. HAProxyMessageDecoder only catches HAProxyProtocolException around this call, so the IOOBE propagates and the retained slice on the pooled cumulation buffer is never released. Versions 4.1.135.Final and 4.2.15.Final patch the issue."}],"source":{"advisory":"GHSA-cc37-9q2j-3hfv","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-12T19:01:50.571781Z","id":"CVE-2026-44893","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-12T19:02:36.871Z"}},{"affected":[{"cpes":["cpe:/a:redhat:apache_camel_quarkus:3.33"],"defaultStatus":"affected","product":"Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:openshift_devspaces:3.29::el9"],"defaultStatus":"affected","product":"Red Hat OpenShift Dev Spaces 3.29","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:quarkus:3.27::el8"],"defaultStatus":"affected","product":"Red Hat build of Quarkus 3.27.4.SP1","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:quarkus:3.33::el8"],"defaultStatus":"affected","product":"Red Hat build of Quarkus 3.33.2.SP1","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:amq_streams:2.9::el9"],"defaultStatus":"affected","product":"Streams for Apache Kafka 2.9.4","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:cryostat:4"],"defaultStatus":"affected","product":"Cryostat 4","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:serverless:1"],"defaultStatus":"affected","product":"OpenShift Serverless","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:amq_broker:7"],"defaultStatus":"affected","product":"Red Hat AMQ Broker 7","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:apache_camel_hawtio:4"],"defaultStatus":"affected","product":"Red Hat build of Apache Camel - HawtIO 4","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:camel_quarkus:3"],"defaultStatus":"affected","product":"Red Hat build of Apache Camel 4 for Quarkus 3","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:camel_spring_boot:4"],"defaultStatus":"affected","product":"Red Hat build of Apache Camel for Spring Boot 4","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:apicurio_registry:3"],"defaultStatus":"affected","product":"Red Hat build of Apicurio Registry 3","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:debezium:3"],"defaultStatus":"affected","product":"Red Hat build of Debezium 3","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","product":"Red Hat Build of Keycloak","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:jboss_data_grid:8"],"defaultStatus":"affected","product":"Red Hat Data Grid 8","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:jboss_fuse:7"],"defaultStatus":"affected","product":"Red Hat Fuse 7","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:7"],"defaultStatus":"affected","product":"Red Hat JBoss Enterprise Application Platform 7","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"affected","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:openshift_ai"],"defaultStatus":"affected","product":"Red Hat OpenShift AI (RHOAI)","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:amq_streams:3"],"defaultStatus":"affected","product":"streams for Apache Kafka 3","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:satellite:6"],"defaultStatus":"unaffected","product":"Red Hat Satellite 6","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"],"defaultStatus":"unaffected","product":"Red Hat Single Sign-On 7","vendor":"Red Hat"}],"datePublic":"2026-06-12T14:00:25.801Z","descriptions":[{"lang":"en","value":"A flaw was found in netty-codec-haproxy, a component of the Netty network application framework. A remote attacker can exploit this vulnerability by sending a specially crafted HAProxy message with a malformed PP2_TYPE_SSL TLV (Type-Length-Value) header. This can lead to an IndexOutOfBoundsException and prevent the release of retained memory, ultimately causing a Denial of Service (DoS) condition for the affected application."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-805","description":"Buffer Access with Incorrect Length Value","lang":"en","type":"CWE"}]}],"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-44893"},{"name":"RHBZ#2488383","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488383"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44893.json"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26586"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:36820"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26018"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26017"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:34608"}],"solutions":[{"lang":"en","value":"RHSA-2026:26586: Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1"},{"lang":"en","value":"RHSA-2026:36820: Red Hat OpenShift Dev Spaces 3.29"},{"lang":"en","value":"RHSA-2026:26018: Red Hat build of Quarkus 3.27.4.SP1"},{"lang":"en","value":"RHSA-2026:26017: Red Hat build of Quarkus 3.33.2.SP1"},{"lang":"en","value":"RHSA-2026:34608: Streams for Apache Kafka 2.9.4"}],"timeline":[{"lang":"en","time":"2026-06-12T15:01:18.066Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-06-12T14:00:25.801Z","value":"Made public."}],"title":"netty-codec-haproxy: Netty-codec-haproxy: Denial of Service via malformed HAProxy message","workarounds":[{"lang":"en","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."}],"x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"},"providerMetadata":{"orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP","dateUpdated":"2026-07-09T12:10:00.044Z"}}]}}