Attestkeep
Language: English
Sign up

Vulnerabilities / CVE-2026-42581

critical

CVE-2026-42581

netty: io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers

Published Modified CWE 444
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Red Hat7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), GHSA (medium), Ubuntu (medium).

Description

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absent for HTTP/1.0. An attacker that sends an HTTP/1.0 request with both headers causes Netty to decode the body as chunked while leaving Content-Length intact in the forwarded HttpMessage. Any downstream proxy or handler that trusts Content-Length over Transfer-Encoding will disagree on message boundaries, enabling request smuggling. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

Affected packages and fixed versions

SourcePackageFixed in
chainguardakhq, apache-activemq-artemis, apache-camel-karavan-devmode and 97 more0.27.1-r1 and 86 more
debian 11nettyno fix listed
debian 12nettyno fix listed
debian 13nettyno fix listed
debian 14nettyno fix listed
echonettyno fix listed
echo maven::Echo OSVio.netty:netty-codec-http4.1.133.Final
maven::GitHub Security Advisory Mavenio.netty:netty-codec-http4.2.13.Final, 4.1.133.Final
minimosapache-activemq-artemis, apache-druid, apache-druid-fips and 46 more2.55.0-r0 and 36 more
rapidfort debian 12nettyno fix listed
rapidfort debian 13nettyno fix listed
seal maven::Seal Security Databasecom.amazonaws:aws-java-sdk-bundle, com.couchbase.client:core-io, io.netty:netty-codec-http and 10 more1.12.781+sp999, 1.12.792+sp999 and 9 more
Show all 206 entries from 19 sources
SourcePackageFixed in
chainguardakhq0.27.1-r1
chainguardapache-activemq-artemis2.54.0-r2
chainguardapache-camel-karavan-devmode4.18.1-r1
chainguardapache-nifi2.9.0-r6
chainguardapache-nifi-registry2.9.0-r8
chainguardapache-pulsar-4.04.0.10-r1
chainguardapache-pulsar-4.14.1.3-r15
chainguardapache-pulsar-4.24.2.1-r2
chainguardapache-pulsar-fips-4.04.0.9-r16
chainguardapache-pulsar-fips-4.24.2.1-r3
chainguardapicurio-registry3.2.1-r3
chainguardcamunda-8.88.8.24-r1
chainguardcamunda-8.98.9.5-r2
chainguardcamunda-zeebe-8.68.6.39-r6
chainguardcamunda-zeebe-8.78.7.29-r1
chainguardcamunda-zeebe-8.88.8.24-r1
chainguardcamunda-zeebe-8.98.9.5-r2
chainguardceleborn-0.50.5.4-r26
chainguardceleborn-0.60.6.3-r7
chainguardceleborn-0.70.7.0-r3
chainguardcommercial-elasticsearch-8.198.19.16-r0
chainguardcommercial-elasticsearch-9.39.3.5-r0
chainguardcommercial-elasticsearch-9.49.4.1-r0
chainguarddocker-selenium4.43.0.20260404-r2
chainguarddruid37.0.0-r1
chainguardelasticsearch-8.198.19.15-r1
chainguardelasticsearch-9.19.1.10-r5
chainguardelasticsearch-9.29.2.8-r3
chainguardelasticsearch-9.39.3.4-r1
chainguardelasticsearch-9.49.4.1-r0
chainguardelasticsearch-fips-8.198.19.15-r1
chainguardelasticsearch-fips-9.19.1.10-r12
chainguardelasticsearch-fips-9.29.2.8-r1
chainguardelasticsearch-fips-9.39.3.4-r1
chainguardelasticsearch-fips-9.49.4.1-r0
chainguardflyway12.9.0-r0
chainguardflyway-fips12.5.0-r1
chainguardgrpc-java-fips-1.56.01.56.0-r6
chainguardhadoop-fips-3.53.5.0-r12
chainguardhono2.7.0-r14
chainguardinfinispan-16.116.1.3-r2
chainguardkafbat-ui1.4.2-r10
chainguardkafbat-ui-fips1.4.2-r9
chainguardkafka-bridge1.0.0-r4
chainguardkayenta-2025.22025.2.4-r6
chainguardkayenta-2025.42025.4.3-r8
chainguardkayenta-2026.02026.0.2-r8
chainguardkayenta-2026.12026.1.0-r1
chainguardkayenta-fips-2025.22025.2.4-r7
chainguardkayenta-fips-2025.42025.4.3-r9
chainguardkayenta-fips-2026.02026.0.2-r9
chainguardkayenta-fips-2026.12026.1.0-r1
chainguardkeycloak-26.626.6.1-r2
chainguardkeycloak-fips-26.526.5.7-r10
chainguardkeycloak-fips-26.626.6.1-r3
chainguardknative-kafka-broker-1.201.20.3-r6
chainguardknative-kafka-broker-1.211.21.4-r2
chainguardknative-kafka-broker-1.221.22.1-r1
chainguardknative-kafka-broker-fips-1.201.20.3-r6
chainguardknative-kafka-broker-fips-1.221.22.1-r1
chainguardkserve-modelmesh0.12.0-r33
chainguardlocalstack4.14.0-r10
chainguardlogstash-8.198.19.15-r1
chainguardlogstash-9.09.0.8-r23
chainguardlogstash-9.19.1.10-r8
chainguardlogstash-9.29.2.8-r4
chainguardlogstash-9.39.3.4-r4
chainguardmanagement-api-for-apache-cassandra-4.00.1.117-r1
chainguardmanagement-api-for-apache-cassandra-4.10.1.117-r1
chainguardmanagement-api-for-apache-cassandra-5.00.1.117-r1
chainguardneo4j-2026.012026.01.4-r1
chainguardneo4j-2026.022026.02.3-r4
chainguardneo4j-2026.032026.03.1-r4
chainguardneo4j-2026.042026.04.0-r3
chainguardneo4j-5.265.26.25-r2
chainguardnuxeo-20232023.40-r4
chainguardopensearch-22.19.4-r14
chainguardopensearch-33.8.0-r3
chainguardopensearch-fips-33.7.0-r0
chainguardpinot-fips1.5.0-r2
chainguardreposilite3.5.28-r3
chainguardseata2.6.0-r9
chainguardselenium4.44.0-r0
chainguardsonarqube26.7.0.124771-r0
chainguardspark-3.53.5.8-r13
chainguardspark-4.04.0.2-r12
chainguardspark-4.14.1.2-r1
chainguardspark-fips-3.53.5.8-r1
chainguardspark-fips-4.14.1.1-r14
chainguardspark-kubernetes-operator0.9.0-r0
chainguardspark-kubernetes-operator-fips0.9.0-r0
chainguardstrimzi-kafka-operator0.51.0-r25
chainguardstrimzi-kafka-operator-fips1.0.0-r0
chainguardtez0.10.5-r12
chainguardthingsboard4.3.1.1-r5
chainguardtinkerpop3.8.1-r2
chainguardtrino481-r0
chainguardwavefront-proxy13.9-r13
chainguardwazuh-indexer4.14.5-r0
chainguardzipkin3.6.1-r6
debian 11nettyno fix listed
debian 12nettyno fix listed
debian 13nettyno fix listed
debian 14nettyno fix listed
echonettyno fix listed
echo maven::Echo OSVio.netty:netty-codec-http4.1.133.Final
maven::GitHub Security Advisory Mavenio.netty:netty-codec-http4.2.13.Final, 4.1.133.Final
minimosapache-activemq-artemis2.55.0-r0
minimosapache-druid38.0.0-r0
minimosapache-druid-fips38.0.0-r0
minimosapache-nifi2.10.0-r0
minimosapache-nifi-registry2.10.0-r0
minimosapache-polaris1.6.0-r0
minimosapache-polaris-fips1.6.0-r0
minimosapicurio-registry3.2.5-r0
minimosapicurio-registry-fips3.3.1-r0
minimoscamunda-8.88.8.25-r0
minimoscdc-apache-cassandra-5.02.3.9-r0
minimoscloudwatch-exporter0.17.0-r0
minimosconductor3.32.1-r0
minimosconductor-fips3.32.1-r0
minimoselasticsearch-8.198.19.16-r0
minimoselasticsearch-9.39.3.5-r0
minimoselasticsearch-9.49.4.1-r0
minimoselasticsearch-fips-8.198.19.16-r0
minimoselasticsearch-fips-9.39.3.5-r0
minimoskeycloak26.6.3-r0
minimoskeycloak-fips26.6.3-r0
minimosknative-kafka-broker-dispatcher-loom-1.221.22.2-r0
minimosknative-kafka-broker-dispatcher-loom-fips-1.221.22.2-r0
minimosknative-kafka-broker-receiver-loom-1.211.21.4-r1
minimosknative-kafka-broker-receiver-loom-1.221.22.2-r0
minimosknative-kafka-broker-receiver-loom-fips-1.221.22.2-r0
minimoslinstor-server1.35.0-r0
minimoslinstor-server-fips1.35.0-r0
minimoslogstash-8.188.18.8-r7
minimoslogstash-8.198.19.15-r1
minimoslogstash-9.09.0.8-r8
minimoslogstash-9.19.1.10-r1
minimoslogstash-9.29.2.8-r1
minimoslogstash-9.39.3.4-r1
minimoslogstash-input-http4.1.8-r0
minimosmongodb-search0_git20260421-r2
minimosmongodb-search-fips0_git20260627-r0
minimosneo4j-5.265.26.26-r0
minimosopensearch-22.19.6-r2
minimosopensearch-33.7.0-r0
minimossonarqube26.7.0.124771-r0
minimosstargate2.0.51-r2
minimosstrimzi-kafka-bridge1.0.0-r1
minimosstrimzi-kafka-bridge-fips1.1.0-r0
minimosstrimzi-kafka-operator1.0.1-r3
minimosstrimzi-kafka-operator-0.450.45.2-r6
minimosstrimzi-kafka-operator-fips1.0.1-r1
minimostrino481-r2
minimostrino-fips481-r2
rapidfort debian 12nettyno fix listed
rapidfort debian 13nettyno fix listed
seal maven::Seal Security Databasecom.amazonaws:aws-java-sdk-bundle1.12.781+sp999, 1.12.792+sp999
seal maven::Seal Security Databasecom.couchbase.client:core-io3.8.0+sp5, 3.9.0+sp2
seal maven::Seal Security Databaseio.netty:netty-codec-http4.1.115.Final+sp4, 4.1.118.Final+sp4, 4.1.119.Final+sp4, 4.1.126.Final+sp2, 4.1.128.Final+sp2, 4.1.97.Final+sp3
seal maven::Seal Security Databaseorg.apache.arrow:flight-sql-jdbc-driver18.3.0+sp2
seal maven::Seal Security Databaseseal.sp1.com.amazonaws:aws-java-sdk-bundle1.12.781+sp999, 1.12.792+sp999
seal maven::Seal Security Databaseseal.sp1.com.couchbase.client:core-io3.8.0+sp999, 3.9.0+sp999
seal maven::Seal Security Databaseseal.sp1.io.netty:netty-codec-http4.1.115.Final+sp999, 4.1.118.Final+sp999, 4.1.119.Final+sp999, 4.1.126.Final+sp999, 4.1.128.Final+sp999, 4.1.97.Final+sp999
seal maven::Seal Security Databaseseal.sp1.org.apache.arrow:flight-sql-jdbc-driver18.3.0+sp999
seal maven::Seal Security Databaseseal.sp2.com.couchbase.client:core-io3.8.0+sp999
seal maven::Seal Security Databaseseal.sp2.io.netty:netty-codec-http4.1.115.Final+sp999, 4.1.118.Final+sp999, 4.1.119.Final+sp999, 4.1.97.Final+sp999
seal maven::Seal Security Databaseseal.sp3.com.couchbase.client:core-io3.8.0+sp999
seal maven::Seal Security Databaseseal.sp3.io.netty:netty-codec-http4.1.115.Final+sp999, 4.1.118.Final+sp999, 4.1.119.Final+sp999
seal maven::Seal Security Databaseseal.sp4.com.couchbase.client:core-io3.8.0+sp999
ubuntu 18.04-ESMnetty1:4.1.7-4ubuntu0.1+esm6
ubuntu 20.04-ESMnetty1:4.1.45-1ubuntu0.1~esm6
ubuntu 22.04nettyno fix listed
ubuntu 24.04nettyno fix listed
ubuntu 26.04nettyno fix listed
ubuntu 26.10nettyno fix listed
wolfiakhq0.27.1-r1
wolfiapache-activemq-artemis2.54.0-r2
wolfiapache-nifi2.9.0-r6
wolfiapache-nifi-registry2.9.0-r8
wolfiapache-pulsar-4.14.1.3-r15
wolfiapache-pulsar-4.24.2.1-r2
wolfiapicurio-registry3.2.1-r3
wolficeleborn-0.60.6.3-r7
wolfidocker-selenium4.43.0.20260404-r2
wolfidruid37.0.0-r1
wolfiflyway12.9.0-r0
wolfiinfinispan-16.116.1.3-r2
wolfikeycloak-26.626.6.1-r2
wolfikserve-modelmesh0.12.0-r33
wolfilogstash-9.39.3.4-r4
wolfimanagement-api-for-apache-cassandra-5.00.1.117-r1
wolfineo4j-2026.012026.01.4-r1
wolfiopensearch-22.19.4-r14
wolfiopensearch-33.8.0-r3
wolfiselenium4.44.0-r0
wolfisonarqube26.7.0.124771-r0
wolfispark-4.04.0.2-r12
wolfispark-4.14.1.2-r1
wolfistrimzi-kafka-operator0.51.0-r25
wolfitez0.10.5-r12
wolfithingsboard4.3.1.1-r5
wolfitrino481-r0
wolfiwavefront-proxy13.9-r13
wolfizipkin3.6.1-r6

References

All 25 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.