CVE-2026-59919
Fixed in a distro release EPSS <1%CVSS 5.5
Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.136.Final and 4.2.16.Final, Netty's HAProxy encoder ( HAProxyMessageEncoder ) writes AF_UNIX source and destination socket addresses into the HAProxy V1 text protocol without validating them for CRLF characters, so an attacker who controls an AF_UNIX address can inject \r\n sequences and split the single PROXY header into multiple lines. This is possible because the V1 protocol uses CRLF as its line terminator and, unlike IPv4/IPv6 addresses whose format checks implicitly reject CRLF, AF_UNIX addresses are only validated for length (up to 108 bytes), allowing a forged second PROXY header line that spoofs the client source/destination IP to a downstream server or load balancer. The issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Products: netty
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | io.netty:netty-codec-haproxy | 4.2.16.Final |
| Maven | io.netty:netty-codec-haproxy | 4.1.136.Final |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | apache-activemq-artemis | 2.55.0-r1 |
| Chainguard | apache-hop | 2.18.1-r12 |
| Chainguard | apache-hop-fips | 2.18.1-r6 |
| Chainguard | apache-pulsar-4.0 | 4.0.12-r2 |
| Chainguard | apache-pulsar-4.1 | 4.1.3-r15 |
| Chainguard | apache-pulsar-4.2 | 4.2.3-r3 |
| Chainguard | apache-pulsar-fips-4.0 | 4.0.12-r2 |
| Chainguard | apache-pulsar-fips-4.1 | no fix |
| Chainguard | apache-pulsar-fips-4.2 | 4.2.3-r2 |
| Chainguard | apicurio-registry | 3.3.0-r11 |
| Chainguard | apicurio-registry-3-operator | 3.3.0-r11 |
| Chainguard | apicurio-registry-3-operator-fips | 3.3.0-r8 |
| Chainguard | apicurio-registry-fips | 3.3.0-r8 |
| Chainguard | celeborn-0.5 | 0.5.4-r31 |
| Chainguard | celeborn-0.6 | 0.6.3-r12 |
| Chainguard | floci | 1.5.33-r5 |
| Chainguard | floci-az | 0.9.0-r3 |
| Chainguard | gremlin-server | 3.8.1-r2 |
| Chainguard | hadoop-3.5 | no fix |
| Chainguard | hadoop-fips-3.3.6 | no fix |
| Chainguard | hadoop-fips-3.4.2 | no fix |
| Chainguard | hadoop-fips-3.5 | no fix |
| Chainguard | hadoop-fips-3.5 | 3.5.0-r3 |
| Chainguard | hono-adapter-mqtt | 2.7.0-r30 |
| Chainguard | hono-cli | 2.7.0-r31 |
| Chainguard | hono-cli | 2.7.0-r30 |
| Chainguard | hono-service-auth | 2.7.0-r30 |
| Chainguard | hono-service-command-router | 2.7.0-r30 |
| Chainguard | hono-service-command-router | 2.7.0-r31 |
| Chainguard | hono-service-device-registry-jdbc | 2.7.0-r31 |
| Chainguard | hono-service-device-registry-jdbc | 2.7.0-r30 |
| Chainguard | keycloak-26.5 | no fix |
| Chainguard | keycloak-26.5-iamguarded-compat | no fix |
| Chainguard | keycloak-26.5-operator | no fix |
| Chainguard | keycloak-26.6 | 26.6.6-r0 |
| Chainguard | keycloak-26.6-iamguarded-compat | 26.6.6-r0 |
| Chainguard | keycloak-26.6-operator | 26.6.6-r0 |
| Chainguard | keycloak-26.7 | 26.7.0-r5 |
| Chainguard | keycloak-26.7-iamguarded-compat | 26.7.0-r5 |
| Chainguard | keycloak-26.7-operator | 26.7.0-r5 |
| Chainguard | keycloak-fips-26.5 | no fix |
| Chainguard | keycloak-fips-26.5-iamguarded-fips | no fix |
| Chainguard | keycloak-fips-26.5-operator | no fix |
| Chainguard | keycloak-fips-26.6 | 26.6.6-r0 |
| Chainguard | keycloak-fips-26.6-iamguarded-fips | 26.6.6-r0 |
| Chainguard | keycloak-fips-26.6-operator | 26.6.6-r0 |
| Chainguard | keycloak-fips-26.7 | 26.7.0-r4 |
| Chainguard | keycloak-fips-26.7 | 26.7.0-r5 |
| Chainguard | keycloak-fips-26.7-iamguarded-fips | 26.7.0-r5 |
| Chainguard | keycloak-fips-26.7-iamguarded-fips | 26.7.0-r4 |
| Chainguard | keycloak-fips-26.7-operator | 26.7.0-r4 |
| Chainguard | keycloak-fips-26.7-operator | 26.7.0-r5 |
| Chainguard | knative-kafka-broker-1.20-dispatcher-loom | no fix |
| Chainguard | knative-kafka-broker-1.20-receiver-loom | no fix |
| Chainguard | knative-kafka-broker-1.21-dispatcher-loom | 1.21.4-r14 |
| Chainguard | knative-kafka-broker-1.21-receiver-loom | 1.21.4-r14 |
| Chainguard | knative-kafka-broker-1.22-dispatcher-loom | 1.22.3-r2 |
| Chainguard | knative-kafka-broker-1.22-receiver-loom | 1.22.3-r2 |
| Chainguard | knative-kafka-broker-fips-1.20-dispatcher-loom | no fix |
| Chainguard | knative-kafka-broker-fips-1.20-receiver-loom | no fix |
| Chainguard | knative-kafka-broker-fips-1.21-dispatcher-loom | 1.21.4-r9 |
| Chainguard | knative-kafka-broker-fips-1.21-receiver-loom | 1.21.4-r9 |
| Chainguard | knative-kafka-broker-fips-1.22-dispatcher-loom | 1.22.2-r12 |
| Chainguard | knative-kafka-broker-fips-1.22-receiver-loom | 1.22.2-r12 |
| Chainguard | management-api-for-apache-cassandra-5.0 | 0.1.122-r2 |
| Chainguard | neo4j-2026.04 | 2026.04.0-r3 |
| Chainguard | neo4j-2026.05 | 2026.05.0-r12 |
| Chainguard | neo4j-2026.05-docker-publish | no fix |
| Chainguard | neo4j-2026.06 | 2026.06.0-r4 |
| Chainguard | pinot | 1.5.1-r7 |
| Chainguard | pinot-fips | 1.5.1-r6 |
| Chainguard | ranger | no fix |
| Chainguard | request-9047-keycloak-fips-26.4 | 26.4.7-r26 |
| Chainguard | request-9047-keycloak-fips-26.4-iamguarded-fips | 26.4.7-r26 |
| Chainguard | request-9047-keycloak-fips-26.4-operator | 26.4.7-r26 |
| Chainguard | request-9047-keycloak-fips-26.5 | 26.5.7-r16 |
| Chainguard | request-9047-keycloak-fips-26.5-iamguarded-fips | 26.5.7-r16 |
| Chainguard | request-9047-keycloak-fips-26.5-operator | 26.5.7-r16 |
| Chainguard | request-9047-keycloak-fips-26.6 | 26.6.4-r7 |
| Chainguard | request-9047-keycloak-fips-26.6-iamguarded-fips | 26.6.4-r7 |
| Chainguard | request-9047-keycloak-fips-26.6-operator | 26.6.4-r7 |
| Chainguard | seata-server | 2.7.0-r3 |
| Chainguard | tez | 0.10.5-r24 |
| Chainguard | thingsboard-tb-mqtt-transport | 4.3.1.3-r11 |
| Chainguard | thingsboard-tb-node | 4.3.1.3-r11 |
| Chainguard | zipkin | 3.6.1-r18 |
| Debian 12 | netty | no fix |
| Debian 13 | netty | no fix |
| Debian 14 | netty | no fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | netty | 4.1.136-150200.4.53.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | netty-tcnative | 2.0.80-150200.3.48.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | netty-tcnative | 2.0.80-150200.3.48.1 |
| Ubuntu 26.10 | netty | no fix |
| Ubuntu Pro 14.04 LTS | netty | no fix |
| Ubuntu Pro 16.04 LTS | netty | no fix |
| Ubuntu Pro 18.04 LTS | netty | no fix |
| Ubuntu Pro 20.04 LTS | netty | no fix |
| Ubuntu Pro 22.04 LTS | netty | no fix |
| Ubuntu Pro 24.04 LTS | netty | no fix |
| Ubuntu Pro 26.04 LTS | netty | no fix |
| Wolfi | apache-activemq-artemis | 2.55.0-r1 |
| Wolfi | apache-pulsar-4.1 | 4.1.3-r15 |
| Wolfi | apache-pulsar-4.2 | 4.2.3-r3 |
| Wolfi | apicurio-registry | 3.3.0-r11 |
| Wolfi | celeborn-0.6 | 0.6.3-r12 |
| Wolfi | keycloak-26.5 | no fix |
| Wolfi | keycloak-26.5-iamguarded-compat | no fix |
| Wolfi | keycloak-26.5-operator | no fix |
| Wolfi | keycloak-26.6 | 26.6.6-r0 |
| Wolfi | keycloak-26.6-iamguarded-compat | 26.6.6-r0 |
| Wolfi | keycloak-26.6-operator | 26.6.6-r0 |
| Wolfi | management-api-for-apache-cassandra-5.0 | 0.1.122-r2 |
| Wolfi | neo4j-2026.05 | 2026.05.0-r12 |
| Wolfi | neo4j-2026.05-docker-publish | no fix |
| Wolfi | neo4j-2026.06 | 2026.06.0-r4 |
| Wolfi | tez | 0.10.5-r24 |
| Wolfi | thingsboard-tb-mqtt-transport | 4.3.1.3-r11 |
| Wolfi | thingsboard-tb-node | 4.3.1.3-r11 |
| Wolfi | zipkin | 3.6.1-r18 |
| openSUSE Tumbleweed | netty | 4.1.136-1.1 |