StackRadar

CVE-2026-56866

High

Advisory

Published 8 Oct 2026In the index since 9 Oct 2026
Severity
High
worst across findings
CVSS
7.5
base score, highest
EPSS
0.003
22nd percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
5,293
of 18,131 indexed, latest versions
Container images
6,123
deployed by those charts
Fix available
1 of 2
affected packages

HTTP/1 client connection desynchronization after CONNECT rejection in net/http

Carried by container images the latest versions of 5,293 of 18,131 indexed charts deploy, on 6,123 images.

Affected packageAffected versionsFixed inImages
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+209 more1.26.96,123
golang-1.19deb1.19.8-2no fix listed1
OSV records
DEBIAN-CVE-2026-56866GO-2026-6605
Trending
Rank 10 in indexed charts, since 9 Oct 2026. See the ranking →

Charts affected

5,293 by stars
ChartLatestAffected imagesRadar Score
flame-rollupastria0.1.31 of 2See more

flame-rollup astria 0.1.3

1 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/astriaorg/flame:0.1.0c8af1c5aae40
stdlib@go1.22.12
1.26.9

Open the chart page →

4,725
graph-nodeastria0.2.23 of 3See more

graph-node astria 0.2.2

3 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
graphprotocol/graph-node:latestb0436347fb24
stdlib@go1.26.5
1.26.9
ipfs/kubo:v0.17.0803fac58ba15
stdlib@go1.19.1
1.26.9
library/postgres:latestfc973eb97c9f
stdlib@go1.24.6
1.26.9

Open the chart page →

7,088
sequencerastria4.0.02 of 3See more

sequencer astria 4.0.0

2 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
cometbft/cometbft:v0.38.1722c2ac018f40
stdlib@go1.22.11
1.26.9
rclone/rclone:1.56.0f2fc45c8bc57
stdlib@go1.16.6
1.26.9

Open the chart page →

8,486
sequencer-faucetastria0.9.21 of 1See more

sequencer-faucet astria 0.9.2

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/astriaorg/seq-faucet:0.9.0bf3cb9b505b6
stdlib@go1.22.6
1.26.9

Open the chart page →

1,870
phonebook-chartasumankamberoglu0.1.51 of 3See more

phonebook-chart asumankamberoglu 0.1.5

1 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
library/mysql:5.74bc6bc963e6d
stdlib@go1.18.2
1.26.9

Open the chart page →

4,041
asya-playgroundasya1.1.31 of 1See more

asya-playground asya 1.1.3

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
localstack/localstack:3.19d278167f2b7
stdlib@go1.18.10
1.26.9

Open the chart page →

10,943
hcloud-csi-driveratem181.5.12 of 6See more

hcloud-csi-driver atem18 1.5.1

2 of the 6 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
hetznercloud/hcloud-csi-driver:1.5.141dce5b33644
stdlib@go1.15.3
1.26.9
quay.io/k8scsi/csi-node-driver-registrar:v1.3.0e6df72478956
stdlib@go1.13.3
1.26.9

Open the chart page →

9,050
bamboo-agentatlassian-data-centerVerified publisher2.0.171 of 1See more

bamboo-agent atlassian-data-center 2.0.17

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
atlassian/bamboo-agent-base:12.1.12a8d7b10b667a
stdlib@go1.22.2
1.26.9

Open the chart page →

2,124
alertmanager-discordatrox3.1.01 of 1See more

alertmanager-discord atrox 3.1.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/atrox/alertmanager-discord:v1.0.0ac011a4b6df1
stdlib@go1.20.5
1.26.9

Open the chart page →

1,144
attestkeepattestkeepVerified publisher1.3.72 of 2See more

attestkeep attestkeep 1.3.7

2 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
library/postgres:16.15-alpine721873c34ceb
stdlib@go1.24.6
1.26.9
ghcr.io/attestkeep/attestkeep-k8s:1.3.71fbf69c89003
stdlib@go1.26.4
1.26.9

Open the chart page →

1,297
authorization-componentauthorization-component1.0.01 of 3See more

authorization-component authorization-component 1.0.0

1 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/conductionnl/authorization-component-php:latest94a749392fcf
stdlib@go1.13.10
1.26.9

Open the chart page →

9,544
autopushautopushVerified publisher0.0.501 of 4See more

autopush autopush 0.0.50

1 of the 4 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
prom/statsd-exporter:v0.31.01d5d341c4eb7
stdlib@go1.26.7
1.26.9

Open the chart page →

3,607
okd-webhookav1o-chartsVerified publisher0.1.01 of 1See more

okd-webhook av1o-charts 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
registry.gitlab.com/av1o/okd-webhook:v0.1.028c3e5eb2650
stdlib@go1.16
1.26.9

Open the chart page →

2,931
botkubeaveshaVerified publisher1.0.01 of 2See more

botkube avesha 1.0.0

1 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/kubeshop/botkube:v1.0.0669e27a5d1af
stdlib@go1.19.7
1.26.9

Open the chart page →

6,568
istio-discoveryaveshaVerified publisher1.16.01 of 1See more

istio-discovery avesha 1.16.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
istio/pilot:1.16.0ac0284d75ec9
stdlib@go1.19.3
1.26.9

Open the chart page →

8,061
kubeslice-workeraveshaVerified publisher1.5.02 of 14See more

kubeslice-worker avesha 1.5.0

2 of the 14 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
aveshasystems/spiffe-csi-driver:0.2.753fc6d009e04
stdlib@go1.22.2
1.26.9
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.8.1f6717ce72a26
stdlib@go1.20.3
1.26.9

Open the chart page →

2,978
amazon-ec2-metadata-mockaws1.11.21 of 1See more

amazon-ec2-metadata-mock aws 1.11.2

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
public.ecr.aws/aws-ec2/amazon-ec2-metadata-mock:v1.11.2dd02d3569da0
stdlib@go1.17.13
1.26.9

Open the chart page →

1,610
appmesh-jaegeraws1.0.31 of 1See more

appmesh-jaeger aws 1.0.3

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
jaegertracing/all-in-one:1.2942822be7888b
stdlib@go1.17.3
1.26.9

Open the chart page →

3,592
appmesh-prometheusaws1.0.31 of 2See more

appmesh-prometheus aws 1.0.3

1 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
prom/prometheus:v2.13.10a8caa2e9f19
stdlib@go1.13.1
1.26.9

Open the chart page →

4,119
aws-node-termination-handler-2aws0.2.02 of 2See more

aws-node-termination-handler-2 aws 0.2.0

2 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
public.ecr.aws/aws-ec2/aws-node-termination-handler-2/controller:v2.0.0-beta9637c80dd23f
stdlib@go1.19.3
1.26.9
public.ecr.aws/aws-ec2/aws-node-termination-handler-2/webhook:v2.0.0-beta86b0f7243250
stdlib@go1.19.3
1.26.9

Open the chart page →

4,649
aws-sigv4-proxy-admission-controlleraws0.1.21 of 1See more

aws-sigv4-proxy-admission-controller aws 0.1.2

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
public.ecr.aws/aws-observability/aws-sigv4-proxy-admission-controller:1.067b89ae52240
stdlib@go1.15.3
1.26.9

Open the chart page →

3,370
axelor-open-suiteaxelor-open-suiteVerified publisher7.2.581 of 2See more

axelor-open-suite axelor-open-suite 7.2.58

1 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
pmoscode/axelor-open-suite:v7.2.57a58f4d762f5c
stdlib@go1.21.2
1.26.9

Open the chart page →

10,702
axonops-developer-operatoraxonops-developer-operator0.1.01 of 1See more

axonops-developer-operator axonops-developer-operator 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/axonops/axonops-developer-operator:v0.1.0b3d6600c8ba5
stdlib@go1.22.10
1.26.9

Open the chart page →

1,292
axonops-operatoraxonops-operator0.1.01 of 1See more

axonops-operator axonops-operator 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/axonops/axonops-operator:0.1.0e0cdb993f0b1
stdlib@go1.25.9
1.26.9

Open the chart page →

669
azerothcoreazerothcoreVerified publisher0.2.01 of 6See more

azerothcore azerothcore 0.2.0

1 of the 6 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
registry.k8s.io/kubectl:v1.35.9436cbaa8a019
stdlib@go1.26.8
1.26.9

Open the chart page →

2,443
azure-advanced-backupazure-advanced-backup0.4.11 of 1See more

azure-advanced-backup azure-advanced-backup 0.4.1

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/dodevops/azure-advanced-backup:0.4.01041d4449e49
stdlib@go1.17.9
1.26.9

Open the chart page →

5,704
kubernetes-providerazureappconfiguration-kubernetesprovider2.6.71 of 1See more

kubernetes-provider azureappconfiguration-kubernetesprovider 2.6.7

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
mcr.microsoft.com/azure-app-configuration/kubernetes-provider:2.6.7da4db80de17e
stdlib@go1.26.7
1.26.9

Open the chart page →

714
azurefile-csi-driverazurefile-csi-driverVerified publisher1.35.76 of 7See more

azurefile-csi-driver azurefile-csi-driver 1.35.7

6 of the 7 container images this version deploys carry CVE-2026-56866.

Open the chart page →

1,890
ambassadorazureorkestra6.7.91 of 2See more

ambassador azureorkestra 6.7.9

1 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
datawire/aes:1.13.62beb65062c8b
stdlib@go1.15
1.26.9

Open the chart page →

7,087
helm-controllerazureorkestra0.1.12 of 2See more

helm-controller azureorkestra 0.1.1

2 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
fluxcd/helm-controller:v0.9.092b891e495d8
stdlib@go1.15.10
1.26.9
fluxcd/source-controller:v0.10.031a8c79a6803
stdlib@go1.15.10
1.26.9

Open the chart page →

10,194
keptn-addonsazureorkestra0.1.04 of 4See more

keptn-addons azureorkestra 0.1.0

4 of the 4 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
keptn/distributor:0.8.36bc3df9e0d6a
stdlib@go1.16.2
1.26.9
keptn/distributor:0.8.472e17527a4f9
stdlib@go1.16.2
1.26.9
keptncontrib/prometheus-service:0.6.029969dd547de
stdlib@go1.13.7
1.26.9
keptnsandbox/job-executor-service:0.1.36e6d323dd7ae
stdlib@go1.16.2
1.26.9

Open the chart page →

15,333
prometheusazureorkestra14.8.05 of 6See more

prometheus azureorkestra 14.8.0

5 of the 6 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
jimmidyson/configmap-reload:v0.5.0904d08e9f701
stdlib@go1.15.7
1.26.9
prom/pushgateway:v1.3.18305a33fb80a
stdlib@go1.15.6
1.26.9
quay.io/prometheus/alertmanager:v0.21.024a5204b418e
stdlib@go1.14.4
1.26.9
quay.io/prometheus/node-exporter:v1.1.222fbde17ab64
stdlib@go1.15.8
1.26.9
quay.io/prometheus/prometheus:v2.26.038d40a760569
stdlib@go1.16.2
1.26.9

Open the chart page →

15,444
webserverazureorkestra1.0.01 of 1See more

webserver azureorkestra 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
nmalhotr/webserver:v1.0.03419361fb0dd
stdlib@go1.13.10
1.26.9

Open the chart page →

5,262
krakendbaboulinet0.1.341 of 1See more

krakend baboulinet 0.1.34

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
devopsfaith/krakend:2.7.09219cda867e2
stdlib@go1.22.5
1.26.9

Open the chart page →

1,934
ragflowbaboulinet0.1.11 of 5See more

ragflow baboulinet 0.1.1

1 of the 5 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
library/mysql:8.0.39ccb8f749bb5e
stdlib@go1.18.2
1.26.9

Open the chart page →

5,069
prometheus-blackbox-exporterbackbox-exporter7.8.01 of 1See more

prometheus-blackbox-exporter backbox-exporter 7.8.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
prom/blackbox-exporter:v0.23.0ca04aa9d9093
stdlib@go1.19.3
1.26.9

Open the chart page →

2,350
backlokto-operatorbacklokto0.0.11 of 1See more

backlokto-operator backlokto 0.0.1

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
piblokto/backlokto-operator:v0.0.20963cda71e393
stdlib@go1.20.14
1.26.9

Open the chart page →

1,347
backrestbackrest0.2.01 of 1See more

backrest backrest 0.2.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
garethgeorge/backrest:latestb85297975428
stdlib@go1.26.0
1.26.9

Open the chart page →

1,335
backup-operatorbackup-operatorVerified publisher1.2.31 of 1See more

backup-operator backup-operator 1.2.3

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/universal-backup-operator/backup-operator:1.2.306292b289dda
stdlib@go1.22.4
1.26.9

Open the chart page →

1,426
balance-registrationbalance-registration0.1.01 of 4See more

balance-registration balance-registration 0.1.0

1 of the 4 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
conduction/balance-registration-php:devc36094a41369
stdlib@go1.13.10
1.26.9

Open the chart page →

11,022
binderybdclark-helm-chartsVerified publisher0.1.51 of 1See more

bindery bdclark-helm-charts 0.1.5

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/vavallee/bindery:v1.41.028871d79c624
stdlib@go1.26.8
1.26.9

Open the chart page →

152
mealiebdclark-helm-chartsVerified publisher0.1.161 of 1See more

mealie bdclark-helm-charts 0.1.16

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/mealie-recipes/mealie:v3.28.08b02290f4d18
stdlib@go1.24.4
1.26.9

Open the chart page →

4,028
qbittorrent-vpnbdclark-helm-chartsVerified publisher0.7.71 of 2See more

qbittorrent-vpn bdclark-helm-charts 0.7.7

1 of the 2 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
qmcgaw/gluetun:v3.41.3fa19cc76b2af
stdlib@go1.25.11
1.26.9

Open the chart page →

843
bluesky-pdsbear0.4.2081 of 1See more

bluesky-pds bear 0.4.208

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/bluesky-social/pds:0.4.208637083d9369d
stdlib@go1.25.7
1.26.9

Open the chart page →

2,801
helm-samplebehnambm-helm-chart1.0.11 of 3See more

helm-sample behnambm-helm-chart 1.0.1

1 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
library/mysql:86ea90827b110
stdlib@go1.24.6
1.26.9

Open the chart page →

3,100
berichtserviceberichtservice1.0.01 of 3See more

berichtservice berichtservice 1.0.0

1 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/conductionnl/berichtservice-php:latestee6a21e66ff0
stdlib@go1.13.10
1.26.9

Open the chart page →

9,346
pagesberrutig-pages1.0.01 of 3See more

pages berrutig-pages 1.0.0

1 of the 3 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
library/mysql:8.07dcddc01f13b
stdlib@go1.24.6
1.26.9

Open the chart page →

21,457
trident-operatorberyju-org21.10.01 of 1See more

trident-operator beryju-org 21.10.0

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
netapp/trident-operator:21.10.049cfe552d9c2
stdlib@go1.16.9
1.26.9

Open the chart page →

3,202
betacalendars-calendar-boundary-labbetacalendars-calendar-boundary-labVerified publisher0.1.21 of 1See more

betacalendars-calendar-boundary-lab betacalendars-calendar-boundary-lab 0.1.2

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
ghcr.io/mateopedersen/betacalendars-calendar-boundary-lab:1.0.043da2a255584
stdlib@go1.25.14
1.26.9

Open the chart page →

148
algorand-participationbiatec-repoVerified publisher4.4.11 of 1See more

algorand-participation biatec-repo 4.4.1

1 of the 1 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
scholtz2/algorand-participation-mainnet-extended:4.4.1-stable5aaa5d4ab8b8
stdlib@go1.25.3
1.26.9

Open the chart page →

8,649

Container images carrying it

6,123 by charts deploying them

A fixed version is listed for 1 of the 2 affected packages.

Container imageDigestPackageFixed inUsed by
registry.k8s.io/sig-storage/csi-resizer:v2.0.04a95d94e57ad
stdlib@go1.24.6
1.26.9
1
registry.k8s.io/sig-storage/csi-resizer:v1.10.14ecda2818f6d
stdlib@go1.21.5
1.26.9
1
registry.k8s.io/sig-storage/csi-resizer:v1.3.06e0546563b18
stdlib@go1.16.2
1.26.9
1
registry.k8s.io/sig-storage/csi-resizer:v1.12.0ab774734705a
stdlib@go1.22.5
1.26.9
1
registry.k8s.io/sig-storage/csi-snapshotter:v6.1.0291334908ddf
stdlib@go1.18
1.26.9
1
registry.k8s.io/sig-storage/csi-snapshotter:v8.0.25f051159c95f
stdlib@go1.22.5
1.26.9
1
registry.k8s.io/sig-storage/csi-snapshotter:v8.2.15f4bb469fec5
stdlib@go1.23.6
1.26.9
1
registry.k8s.io/sig-storage/csi-snapshotter:v4.2.1818f35653f2e
stdlib@go1.16.2
1.26.9
1
registry.k8s.io/sig-storage/csi-snapshotter:v5.0.189e900a160a9
stdlib@go1.17.3
1.26.9
1
registry.k8s.io/sig-storage/hostpathplugin:v1.9.092257881c1d6
stdlib@go1.18
1.26.9
1
registry.k8s.io/sig-storage/livenessprobe:v2.9.02b10b24dafdc
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/livenessprobe:v2.11.082adbebdf5d5
stdlib@go1.20.5
1.26.9
1
registry.k8s.io/sig-storage/local-volume-provisioner:v2.8.03e2bf2eaef9f
stdlib@go1.23.4
1.26.9
1
registry.k8s.io/sig-storage/local-volume-provisioner:v2.10.05cf1c5c45d68
stdlib@go1.26.5
1.26.9
1
registry.k8s.io/sig-storage/nfsplugin:v4.13.519162ec4fb3f
stdlib@go1.26.5
1.26.9
1
registry.k8s.io/sig-storage/nfsplugin:v4.11.0ce5b5ccd5eb0
stdlib@go1.23.6
1.26.9
1
registry.k8s.io/sig-storage/nfs-subdir-external-provisioner:v4.0.03ce0fdba4d8e
stdlib@go1.15
1.26.9
1
registry.k8s.io/sig-storage/objectstorage-sidecar:v0.2.2c7166a73a303
stdlib@go1.24.11
1.26.9
1
registry.k8s.io/sig-storage/snapshot-controller:v8.2.1472fa35a89da
stdlib@go1.23.6
1.26.9
1
registry.k8s.io/sig-storage/snapshot-controller:v4.2.195587f8777d7
stdlib@go1.16.2
1.26.9
1
registry.k8s.io/sig-storage/snapshot-controller:v6.2.198bab4eaf23c
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/snapshot-controller:v6.3.1ce6ca3c0e30b
stdlib@go1.20.5
1.26.9
1
registry.k8s.io/sig-storage/volume-data-source-validator:v1.0.0d35884236461
stdlib@go1.17.3
1.26.9
1

syft 1.42.1 · advisories as of 15 Oct 2026

Corrections: contact@stackradar.io

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