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
5,264
of 18,143 indexed, latest versions
Container images
6,101
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 5,264 of 18,143 indexed charts deploy, on 6,101 images.

Affected packageAffected versionsFixed inImages
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+208 more1.26.96,101
golang-1.19deb1.19.8-2no fix listed1
OSV records
DEBIAN-CVE-2026-56866GO-2026-6605
Also known as
BIT-golang-2026-56866
Trending
Rank 14 in indexed charts, since 9 Oct 2026. See the ranking →

Charts affected

5,264 by stars
ChartLatestAffected imagesRadar Score
kiamuswitch6.1.21 of 1See more

kiam uswitch 6.1.2

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

Container imageDigestPackageFixed in
quay.io/uswitch/kiam:v4.0be3a5846922d
stdlib@go1.13.8
1.26.9

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4,236
utho-app-operator-chartutho-operatorVerified publisher0.1.61 of 2See more

utho-app-operator-chart utho-operator 0.1.6

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

Container imageDigestPackageFixed in
utho/utho-app-operator:0.1.46e8a690e8b7a
stdlib@go1.22.8
1.26.9

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1,035
gohttpserverutkuozdemirVerified publisher0.2.01 of 1See more

gohttpserver utkuozdemir 0.2.0

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

Container imageDigestPackageFixed in
codeskyblue/gohttpserver:latestcaa862590e34
stdlib@go1.16.3
1.26.9

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3,306
transmission-exporterutkuozdemirVerified publisher1.1.01 of 1See more

transmission-exporter utkuozdemir 1.1.0

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

Container imageDigestPackageFixed in
metalmatze/transmission-exporter:0.3.090d6acb6d47d
stdlib@go1.13
1.26.9

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2,813
proxyv2flyVerified publisher0.0.61 of 1See more

proxy v2fly 0.0.6

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

Container imageDigestPackageFixed in
v2fly/v2fly-core:latestd06727b221fe
stdlib@go1.24.2
1.26.9

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1,989
vald-operatorvald1.8.11 of 1See more

vald-operator vald 1.8.1

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

Container imageDigestPackageFixed in
vdaas/vald-operator:latest0c3dcd4974f6
stdlib@go1.26.6
1.26.9

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293
vals-operatorvals-operatorVerified publisher0.8.11 of 1See more

vals-operator vals-operator 0.8.1

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

Container imageDigestPackageFixed in
ghcr.io/digitalis-io/vals-operator:v0.8.17c776499b8c9
stdlib@go1.25.7
1.26.9

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1,151
vaultvault-helmVerified publisher0.4.11 of 1See more

vault vault-helm 0.4.1

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

Container imageDigestPackageFixed in
hashicorp/vault:2.1.05520cc26271c
stdlib@go1.26.7
1.26.9

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524
vault-raft-snapshot-agentvault-raft-snapshot-agentVerified publisher0.6.91 of 1See more

vault-raft-snapshot-agent vault-raft-snapshot-agent 0.6.9

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

Container imageDigestPackageFixed in
ghcr.io/argelbargel/vault-raft-snapshot-agent:v0.12.5345174727a2b
stdlib@go1.23.10
1.26.9

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1,868
vault-sync-operatorvault-sync-operatorVerified publisher0.1.11 of 1See more

vault-sync-operator vault-sync-operator 0.1.1

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

Container imageDigestPackageFixed in
ghcr.io/danieldonoghue/vault-sync-operator:v0.0.1-beta.38d7ec69a193c
stdlib@go1.25.9
1.26.9

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650
evolution-apivcnngrVerified publisher1.0.01 of 5See more

evolution-api vcnngr 1.0.0

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

Container imageDigestPackageFixed in
evoapicloud/evolution-api:latest966625532d90
stdlib@go1.23.12
1.26.9

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4,787
openldap-havcnngrVerified publisher1.0.01 of 3See more

openldap-ha vcnngr 1.0.0

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

Container imageDigestPackageFixed in
osixia/openldap:1.5.018742e9c449c
stdlib@go1.15.5
1.26.9

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8,378
simple-prima-notavcnngrVerified publisher0.5.31 of 4See more

simple-prima-nota vcnngr 0.5.3

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

Container imageDigestPackageFixed in
library/postgres:16-alpine721873c34ceb
stdlib@go1.24.6
1.26.9

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5,954
devportalveecode-platform-nextVerified publisher1.1.01 of 1See more

devportal veecode-platform-next 1.1.0

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

Container imageDigestPackageFixed in
veecode/devportaldigest-pinnedfe33373b7e5d
stdlib@go1.26.7
1.26.9

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1,587
velero-clientvelero-clientVerified publisher1.4.21 of 1See more

velero-client velero-client 1.4.2

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

Container imageDigestPackageFixed in
registry.gitlab.com/xrow-public/velero-client/velero-client:1.4.203015f863a3e
stdlib@go1.26.4
1.26.9

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1,094
velkirvelkir0.1.21 of 1See more

velkir velkir 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/ioxie/velkir/manager:v0.1.202c657d62d1d
stdlib@go1.26.5
1.26.9

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420
velocityvelocity1.0.01 of 2See more

velocity velocity 1.0.0

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

Container imageDigestPackageFixed in
library/postgres:16-alpine721873c34ceb
stdlib@go1.24.6
1.26.9

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1,339
doris-foundationdbvelodb25.8.01 of 4See more

doris-foundationdb velodb 25.8.0

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

Container imageDigestPackageFixed in
foundationdb/fdb-kubernetes-operator:v2.3.07d7b6985291e
stdlib@go1.23.7
1.26.9

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4,444
doris-operatorvelodb25.8.01 of 1See more

doris-operator velodb 25.8.0

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

Container imageDigestPackageFixed in
apache/doris:operator-latest3a4422656592
stdlib@go1.23.12
1.26.9

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934
verhuis-serviceverhuis-service1.0.01 of 3See more

verhuis-service verhuis-service 1.0.0

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

Container imageDigestPackageFixed in
ghcr.io/conductionnl/verhuis-service-php:latest66bbaf95a123
stdlib@go1.13.10
1.26.9

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9,561
verticadb-operatorvertica-chartsVerified publisher26.2.21 of 1See more

verticadb-operator vertica-charts 26.2.2

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

Container imageDigestPackageFixed in
opentext/verticadb-operator:26.2.2-04ad44e44476c
stdlib@go1.26.6
1.26.9

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349
verzoekconversieserviceverzoekconversieservice1.0.01 of 3See more

verzoekconversieservice verzoekconversieservice 1.0.0

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

Container imageDigestPackageFixed in
ghcr.io/conductionnl/verzoekconversieservice-php:lateste918014fb8d3
stdlib@go1.13.10
1.26.9

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9,579
verzoekregistratiecomponentverzoekregistratiecomponent1.1.01 of 4See more

verzoekregistratiecomponent verzoekregistratiecomponent 1.1.0

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

Container imageDigestPackageFixed in
ghcr.io/conductionnl/verzoekregistratiecomponent-php:latestc4f6c03af5d3
stdlib@go1.13.10
1.26.9

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9,457
verzoektypecatalogusverzoektypecatalogus1.1.01 of 4See more

verzoektypecatalogus verzoektypecatalogus 1.1.0

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

Container imageDigestPackageFixed in
ghcr.io/conductionnl/verzoektypecatalogus-php:latest64f5eb7a398b
stdlib@go1.13.10
1.26.9

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9,457
homarrvhdirkVerified publisher0.1.51 of 1See more

homarr vhdirk 0.1.5

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

Container imageDigestPackageFixed in
ghcr.io/ajnart/homarr:lateste103abadfb52
stdlib@go1.22.5
1.26.9

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3,519
scrutinyvhdirkVerified publisher0.1.31 of 1See more

scrutiny vhdirk 0.1.3

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

Container imageDigestPackageFixed in
ghcr.io/analogj/scrutiny:master-omnibus18689773150d
stdlib@go1.20.14
1.26.9

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5,786
victoria-metrics-estimatorvictoriametricsVerified publisher0.2.01 of 1See more

victoria-metrics-estimator victoriametrics 0.2.0

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

Container imageDigestPackageFixed in
victoriametrics/vmestimator:v0.1.16ccf603552de2
stdlib@go1.26.6
1.26.9

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327
victoria-traces-singlevictoriametricsVerified publisher0.1.111 of 1See more

victoria-traces-single victoriametrics 0.1.11

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

Container imageDigestPackageFixed in
victoriametrics/victoria-traces:v0.11.09947b14b6b9b
stdlib@go1.26.5
1.26.9

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263
bugsinkvictorlane0.3.71 of 2See more

bugsink victorlane 0.3.7

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

Container imageDigestPackageFixed in
library/mariadb:12.0-noble607835cd628b
stdlib@go1.24.6
1.26.9

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4,756
n8nvictorlane1.0.181 of 1See more

n8n victorlane 1.0.18

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

Container imageDigestPackageFixed in
n8nio/n8n:1.115.1ed16e560c40e
stdlib@go1.24.6
1.26.9

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7,681
twenty-crmvictorlane0.0.11 of 3See more

twenty-crm victorlane 0.0.1

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

Container imageDigestPackageFixed in
twentycrm/twenty-postgres-spilo:latest2f78405a78be
stdlib@go1.21.7
1.26.9

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73,541
pagesvictor-pages1.0.01 of 3See more

pages victor-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

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21,576
video-dl-botvideo-dl-botVerified publisher1.4.31 of 1See more

video-dl-bot video-dl-bot 1.4.3

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

Container imageDigestPackageFixed in
ghcr.io/tarampampam/video-dl-bot:1.4.36daa2dc7556b
stdlib@go1.27.0
1.26.9

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2,528
kube-monitoring-telegram-botviento-repository1.0.01 of 1See more

kube-monitoring-telegram-bot viento-repository 1.0.0

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

Container imageDigestPackageFixed in
vientoprojects/kubernetes-monitoring-telegram-bot:latesteb2a71531741
stdlib@go1.16.4
1.26.9

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9,452
vineyard-operatorvineyardVerified publisher0.24.22 of 2See more

vineyard-operator vineyard 0.24.2

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

Container imageDigestPackageFixed in
vineyardcloudnative/vineyard-operator:latest9d419aa18faa
stdlib@go1.19.13
1.26.9
ghcr.io/v6d-io/v6d/kube-rbac-proxy:v0.13.0a2523c532c0c
stdlib@go1.18.3
1.26.9

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6,388
calibre-webvista0.1.31 of 1See more

calibre-web vista 0.1.3

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

Container imageDigestPackageFixed in
linuxserver/calibre-web:0.6.24241009026e6f
stdlib@go1.17.8
1.26.9

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9,811
mychartviveksahu261.0.01 of 2See more

mychart viveksahu26 1.0.0

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

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

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4,938
ciliumvks-helm-chartsVerified publisher1.17.143 of 3See more

cilium vks-helm-charts 1.17.14

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

Container imageDigestPackageFixed in
quay.io/cilium/cilium:v1.17.14cdcfab5b4466
stdlib@go1.25.8
1.26.9
quay.io/cilium/cilium-envoy:v1.35.9-1773656288-7b052e66eb2cfc5ac130ce0a5be66202a10d83be60031f396695
stdlib@go1.25.8
1.26.9
quay.io/cilium/operator-generic:v1.17.14773886ec9337
stdlib@go1.25.8
1.26.9

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5,935
corednsvks-helm-chartsVerified publisher1.45.01 of 1See more

coredns vks-helm-charts 1.45.0

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

Container imageDigestPackageFixed in
coredns/coredns:1.13.19b9128672209
stdlib@go1.25.2
1.26.9

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1,428
vm-console-proxyvm-console-proxyVerified publisher0.2.01 of 1See more

vm-console-proxy vm-console-proxy 0.2.0

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

Container imageDigestPackageFixed in
quay.io/kubevirt/vm-console-proxy:v0.8.08d6b4b6e99bd
stdlib@go1.22.4
1.26.9

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1,233
vmware-rest-proxyvmware-rest-proxy0.1.111 of 1See more

vmware-rest-proxy vmware-rest-proxy 0.1.11

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

Container imageDigestPackageFixed in
ghcr.io/dodevops/vmware-rest-proxy:0.1.730f7f73b0a10
stdlib@go1.21.7
1.26.9

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1,968
voidllmvoidllmVerified publisher0.0.301 of 1See more

voidllm voidllm 0.0.30

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

Container imageDigestPackageFixed in
ghcr.io/voidmind-io/voidllm:0.0.30c141d554edb0
stdlib@go1.26.5
1.26.9

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398
go-devvoid-xmh1.0.11 of 1See more

go-dev void-xmh 1.0.1

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

Container imageDigestPackageFixed in
voidxmh/golang:1.19-alpine-dev423c6195fab2
stdlib@go1.19
1.26.9

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1,931
muthurvojtechpastyrikVerified publisher0.10.01 of 1See more

muthur vojtechpastyrik 0.10.0

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

Container imageDigestPackageFixed in
ghcr.io/vojtechpastyrik/muthur:0.10.0b5a06a6e13b9
stdlib@go1.26.1
1.26.9

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748
muthur-collectorvojtechpastyrikVerified publisher0.11.01 of 1See more

muthur-collector vojtechpastyrik 0.11.0

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

Container imageDigestPackageFixed in
ghcr.io/vojtechpastyrik/muthur-collector:0.11.00a580fe3a032
stdlib@go1.26.1
1.26.9

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748
volantmqvolantmq0.1.21 of 1See more

volantmq volantmq 0.1.2

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

Container imageDigestPackageFixed in
volantmq/volantmq:v0.4.0-rc.69bfe7857ebc3
stdlib@go1.13.6
1.26.9

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3,712
volcanovolcano-sh1.16.03 of 3See more

volcano volcano-sh 1.16.0

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

Container imageDigestPackageFixed in
volcanosh/vc-controller-manager:v1.16.09acedb8bb2e2
stdlib@go1.26.2
1.26.9
volcanosh/vc-scheduler:v1.16.0157578510d40
stdlib@go1.26.2
1.26.9
volcanosh/vc-webhook-manager:v1.16.091bbd52a233d
stdlib@go1.26.2
1.26.9

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2,002
postgresappvoting-app-helm-charts-repoVerified publisher1.0.01 of 1See more

postgresapp voting-app-helm-charts-repo 1.0.0

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

Container imageDigestPackageFixed in
library/postgres:latest74935e722416
stdlib@go1.24.6
1.26.9

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1,816
voteappvoting-app-helm-charts-repoVerified publisher1.0.01 of 5See more

voteapp voting-app-helm-charts-repo 1.0.0

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

Container imageDigestPackageFixed in
library/postgres:latestfc973eb97c9f
stdlib@go1.24.6
1.26.9

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9,771
postgresappvoting-app-helm-charts-repo-cloudVerified publisher1.0.01 of 1See more

postgresapp voting-app-helm-charts-repo-cloud 1.0.0

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

Container imageDigestPackageFixed in
library/postgres:latest74935e722416
stdlib@go1.24.6
1.26.9

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1,816

Container images carrying it

6,101 by charts deploying them

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

No deployed image carries CVE-2026-56866.

syft 1.42.1 · advisories as of 17 Oct 2026

Corrections: contact@stackradar.io

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