StackRadar

CVE-2026-56819

High

Advisory

Published 31 Jul 2026In the index since 5 Sept 2026
Severity
High
worst across findings
CVSS
7.5
base score, highest
EPSS
0.004
37th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
388
of 17,787 indexed, latest versions
Container images
452
deployed by those charts
Fix available
1 of 1
affected package

Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)

Carried by container images the latest versions of 388 of 17,787 indexed charts deploy, on 452 images.

Affected packageAffected versionsFixed inImages
netty-codec-http2maven4.1.12.Final, 4.1.19.Final, 4.1.22.Final, 4.1.24.Final+82 more4.1.136.Final, 4.2.16.Final452
OSV records
GHSA-93wv-jw9v-4972

Charts affected

388 by stars
ChartLatestAffected imagesRadar Score
shenyushenyu-helm-chart-test2.4.272 of 2See more

shenyu shenyu-helm-chart-test 2.4.27

2 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
apache/shenyu-admin:2.4.2e8b7c4ddd069
netty-codec-http2@4.1.43.Final
4.1.136.Final
apache/shenyu-bootstrap:2.4.20bd3b25c4be4
netty-codec-http2@4.1.38.Final
4.1.136.Final

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12,512
showroom-docs-mcpshowroom-docs-mcpVerified publisher2.1.01 of 4See more

showroom-docs-mcp showroom-docs-mcp 2.1.0

1 of the 4 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/maximilianopizarro/showroom-docs-mcp:latest1a6eff92827a
netty-codec-http2@4.1.130.Final
4.1.136.Final

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5,230
keycloaksikalabs0.1.01 of 1See more

keycloak sikalabs 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/keycloak/keycloak:26.3.36a7217a100bd
netty-codec-http2@4.1.124.Final
4.1.136.Final

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1,689
simple-keycloaksikalabs0.1.01 of 1See more

simple-keycloak sikalabs 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/keycloak/keycloak:20.0.18830f76112b6
netty-codec-http2@4.1.82.Final
4.1.136.Final

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6,443
bootzookasoftwaremillVerified publisher0.2.11 of 2See more

bootzooka softwaremill 0.2.1

1 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
softwaremill/bootzooka:latest845b5e8f8056
netty-codec-http2@4.2.13.Final
4.2.16.Final

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3,042
strimzi-user-operatorspartan0.4.01 of 1See more

strimzi-user-operator spartan 0.4.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/strimzi/operator:0.45.158c727cd2e68
netty-codec-http2@4.1.118.Final
4.1.136.Final

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1,853
retail-store-sample-cart-chartstacksimplifyVerified publisher1.0.01 of 1See more

retail-store-sample-cart-chart stacksimplify 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
public.ecr.aws/aws-containers/retail-store-sample-cart:1.3.05d767569c976
netty-codec-http2@4.1.124.Final
4.1.136.Final

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1,068
retail-store-sample-orders-chartstacksimplifyVerified publisher2.0.01 of 1See more

retail-store-sample-orders-chart stacksimplify 2.0.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
public.ecr.aws/aws-containers/retail-store-sample-orders:1.3.0e85f034bcf48
netty-codec-http2@4.1.124.Final
4.1.136.Final

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1,223
retail-store-sample-ui-chartstacksimplifyVerified publisher1.0.01 of 1See more

retail-store-sample-ui-chart stacksimplify 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
public.ecr.aws/aws-containers/retail-store-sample-ui:1.3.0ce3f2e935eb3
netty-codec-http2@4.1.124.Final
4.1.136.Final

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836
hazelcaststakaterVerified publisher1.0.21 of 1See more

hazelcast stakater 1.0.2

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
hazelcast/hazelcast:latestf086bf0ecb23
netty-codec-http2@4.1.132.Final
4.1.136.Final

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1,703
teku-validatorstakewise4.3.21 of 2See more

teku-validator stakewise 4.3.2

1 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
consensys/teku:25.4.1bf6ecd2ea716
netty-codec-http2@4.1.118.Final
4.1.136.Final

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3,192
trinostatcan1.23.41 of 2See more

trino statcan 1.23.4

1 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
trinodb/trino:405ee80ab5eeab2
netty-codec-http2@4.1.72.Final
4.1.136.Final

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13,817
sn-consolestreamnative1.13.01 of 1See more

sn-console streamnative 1.13.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
streamnative/private-cloud-console:v2.3.27-all91e54375e154
netty-codec-http2@4.1.129.Final
4.1.136.Final

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1,827
wonder-mesh-netstrrl-helm2026.629.01 of 3See more

wonder-mesh-net strrl-helm 2026.629.0

1 of the 3 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/keycloak/keycloak:26.009a381c715ab
netty-codec-http2@4.1.111.Final
4.1.136.Final

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5,017
netforge-besvtechVerified publisher0.0.21 of 3See more

netforge-be svtech 0.0.2

1 of the 3 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
conductoross/conductor:3.31.09fba127693e6
netty-codec-http2@4.1.119.Final
4.1.136.Final

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4,687
zipkin-gcpt3n1.0.01 of 1See more

zipkin-gcp t3n 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
openzipkin/zipkin-gcp:0.15.2b5d51d1144e2
netty-codec-http2@4.1.43.Final
4.1.136.Final

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4,538
hadoop-deploymenttejaswita-hadoop-helmchart1.0.01 of 1See more

hadoop-deployment tejaswita-hadoop-helmchart 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
apache/hadoop:3af361b20bec0
netty-codec-http2@4.1.89.Final
4.1.136.Final

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4,239
tekton-ci-environment-injectortekton-ci-environment-injectorVerified publisher0.2.41 of 1See more

tekton-ci-environment-injector tekton-ci-environment-injector 0.2.4

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/poundex/tekton-ci-environment-injector:0.2.46dd65f22949c
netty-codec-http2@4.2.15.Final
4.2.16.Final

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511
tekton-stash-and-cachetekton-stash-and-cacheVerified publisher0.2.21 of 1See more

tekton-stash-and-cache tekton-stash-and-cache 0.2.2

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/poundex/tekton-stash-and-cache:0.2.2e854423caa09
netty-codec-http2@4.2.15.Final
4.2.16.Final

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1,121
krokiteochenglim1.0.11 of 5See more

kroki teochenglim 1.0.1

1 of the 5 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
yuzutech/kroki:0.17.0192b7b27c857
netty-codec-http2@4.1.74.Final
4.1.136.Final

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8,716
shenyutest-helm2.4.212 of 2See more

shenyu test-helm 2.4.21

2 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
apache/shenyu-admin:2.4.2e8b7c4ddd069
netty-codec-http2@4.1.43.Final
4.1.136.Final
apache/shenyu-bootstrap:2.4.20bd3b25c4be4
netty-codec-http2@4.1.38.Final
4.1.136.Final

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12,512
thingsboardthingsboardVerified publisher0.1.34 of 12See more

thingsboard thingsboard 0.1.3

4 of the 12 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
thingsboard/tb-coap-transport:3.4.1bd45a09d85d9
netty-codec-http2@4.1.75.Final
4.1.136.Final
thingsboard/tb-http-transport:3.4.1a06f53c5e2da
netty-codec-http2@4.1.75.Final
4.1.136.Final
thingsboard/tb-mqtt-transport:3.4.1030f316ce301
netty-codec-http2@4.1.75.Final
4.1.136.Final
thingsboard/tb-node:3.4.1645f43b688f7
netty-codec-http2@4.1.75.Final
4.1.136.Final

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25,202
hermestoukVerified publisher0.6.01 of 3See more

hermes touk 0.6.0

1 of the 3 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
apicurio/apicurio-registry-kafkasql:2.1.0.Finala97d67487532
netty-codec-http2@4.1.49.Final
4.1.136.Final

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12,454
opencloudunxwaresVerified publisher0.2.31 of 13See more

opencloud unxwares 0.2.3

1 of the 13 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/keycloak/keycloak:26.1.4044a457e0498
netty-codec-http2@4.1.118.Final
4.1.136.Final

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45,392
wazuhwazuh-helm-eksVerified publisher1.2.101 of 6See more

wazuh wazuh-helm-eks 1.2.10

1 of the 6 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
wazuh/wazuh-indexer:4.14.49c344d2b1757
netty-codec-http2@4.1.125.Final
4.1.136.Final

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5,484
webhookiewebhookie0.1.21 of 1See more

webhookie webhookie 0.1.2

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
hookiesolutions/webhookie:latest0629694246ba
netty-codec-http2@4.1.73.Final
4.1.136.Final

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14,420
webhookie-allwebhookie0.1.21 of 3See more

webhookie-all webhookie 0.1.2

1 of the 3 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
hookiesolutions/webhookie:latest0629694246ba
netty-codec-http2@4.1.73.Final
4.1.136.Final

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28,699
hazelcastwenerme5.10.31 of 2See more

hazelcast wenerme 5.10.3

1 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
hazelcast/hazelcast:5.5.05dd5d31c7a06
netty-codec-http2@4.1.111.Final
4.1.136.Final

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2,623
elasticsearchwiremindVerified publisher8.19.01 of 1See more

elasticsearch wiremind 8.19.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
library/elasticsearch:8.19.1289729a95066a
netty-codec-http2@4.1.130.Final
4.1.136.Final

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2,229
keycloakwiremindVerified publisher25.3.11 of 2See more

keycloak wiremind 25.3.1

1 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
ghcr.io/wiremind/bitnami/keycloak:26.5.0-debian-12-r38622ea9e43c0
netty-codec-http2@4.1.128.Final
4.1.136.Final

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7,643
metabasewiremindVerified publisher2.27.5-wiremind01 of 1See more

metabase wiremind 2.27.5-wiremind0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
metabase/metabase:v0.61.1.x9491ed11c901
netty-codec-http2@4.1.133.Final
4.1.136.Final

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1,640
apicurio-registry-sqlwitcom-gmbh0.1.01 of 1See more

apicurio-registry-sql witcom-gmbh 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
apicurio/apicurio-registry-jpa:1.3.2.Final44eeddd3562c
netty-codec-http2@4.1.49.Final
4.1.136.Final

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3,424
opendistro-eswitcom-gmbh1.13.31 of 3See more

opendistro-es witcom-gmbh 1.13.3

1 of the 3 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
amazon/opendistro-for-elasticsearch:1.13.32acfa1dcc5f8
netty-codec-http2@4.1.45.Final
4.1.136.Final

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5,807
ygdrassil-monitoringygdrassilVerified publisher0.4.01 of 10See more

ygdrassil-monitoring ygdrassil 0.4.0

1 of the 10 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
opensearchproject/opensearch:2.18.07f6fa1efee8f
netty-codec-http2@4.1.108.Final
4.1.136.Final

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9,381
zahori-processzahoriVerified publisher1.0.11 of 1See more

zahori-process zahori 1.0.1

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
zahoriaut/zahori-process:0.1.13351f8a220ed7
netty-codec-http2@4.1.94.Final
4.1.136.Final

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3,480
zahori-serverzahoriVerified publisher1.0.11 of 2See more

zahori-server zahori 1.0.1

1 of the 2 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
zahoriaut/zahori-server:0.1.17b2de13916f3e
netty-codec-http2@4.1.87.Final
4.1.136.Final

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5,847
keycloakxzaks2.2.01 of 1See more

keycloakx zaks 2.2.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
quay.io/keycloak/keycloak:20.0.3b8f2a453a17a
netty-codec-http2@4.1.82.Final
4.1.136.Final

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6,016
zipkinzipkinVerified publisher0.5.01 of 1See more

zipkin zipkin 0.5.0

1 of the 1 container images this version deploys carry CVE-2026-56819.

Container imageDigestPackageFixed in
openzipkin/zipkin-slim:3.6.0a69e1057df36
netty-codec-http2@4.2.10.Final
4.2.16.Final

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1,159

Container images carrying it

452 by charts deploying them

A fixed version is listed for 1 of the 1 affected package.

Container imageDigestPackageFixed inUsed by
quay.io/strimzi/operator:0.36.1e9e03b31007c
netty-codec-http2@4.1.94.Final
4.1.136.Final
1
quay.io/wi_stefan/dss-validation-service:0.0.18e928db29ee1
netty-codec-http2@4.1.115.Final
4.1.136.Final
1

syft 1.42.1 · advisories as of 15 Sept 2026

Corrections: contact@stackradar.io

Catalogue: Artifact Hub · Advisories: OSV · Exploitation: FIRST EPSS, CISA KEV.