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
5,339
of 18,108 indexed, latest versions
Container images
6,174
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 5,339 of 18,108 indexed charts deploy, on 6,174 images.

Affected packageAffected versionsFixed inImages
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+212 more1.26.96,174
golang-1.19deb1.19.8-2no fix listed1
OSV records
DEBIAN-CVE-2026-56866GO-2026-6605
Trending
Rank 9 in indexed charts, since 9 Oct 2026. See the ranking →

Charts affected

5,339 by stars
ChartLatestAffected imagesRadar Score
passportxdVerified publisher0.2.162 of 2See more

passport xd 0.2.16

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

Container imageDigestPackageFixed in
lishimeng/passport:v0.2.163e7d05ded625
stdlib@go1.20.7
1.26.9
lishimeng/passport-profile:v0.2.160970dfe5dc8f
stdlib@go1.20.7
1.26.9

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5,398
tabbyxdVerified publisher1.0.61 of 2See more

tabby xd 1.0.6

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

Container imageDigestPackageFixed in
lishimeng/tabby:v1.0.48145c3dc83c8
stdlib@go1.20.6
1.26.9

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8,839
treexdVerified publisher0.1.101 of 1See more

tree xd 0.1.10

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

Container imageDigestPackageFixed in
lishimeng/tree:v0.2.89b2f8be6c7d3
stdlib@go1.20.6
1.26.9

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2,712
zooxdVerified publisher0.4.01 of 1See more

zoo xd 0.4.0

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

Container imageDigestPackageFixed in
lishimeng/zoo:v0.4.0e0b8d2d8ca28
stdlib@go1.20.8
1.26.9

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2,792
xkopsxkops0.1.02 of 5See more

xkops xkops 0.1.0

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

Container imageDigestPackageFixed in
library/mongo:latestbac22ea7710d
stdlib@go1.26.8
1.26.9
murtazashah46/helmfile:latest4d11726cf803
stdlib@go1.22.8
1.26.9

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15,714
xonodepoolsxonodepoolsOfficialVerified publisher1.0.71 of 1See more

xonodepools xonodepools 1.0.7

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

Container imageDigestPackageFixed in
xosphere/xonodepools:1.0.71458097b6f85
stdlib@go1.26.2
1.26.9

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798
xray-proxyxray-proxy1.0.31 of 1See more

xray-proxy xray-proxy 1.0.3

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

Container imageDigestPackageFixed in
gvpaleevkz/xray-proxy:v1.0.046eb128d6c61
stdlib@go1.26.1
1.26.9

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1,148
atlas-operatorxxl-job-adminVerified publisher0.7.111 of 1See more

atlas-operator xxl-job-admin 0.7.11

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

Container imageDigestPackageFixed in
arigaio/atlas-operator:0.7.111c4caa13c92b
stdlib@go1.24.5
1.26.9

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1,748
cloudeye-exporterxxl-job-adminVerified publisher0.1.21 of 1See more

cloudeye-exporter xxl-job-admin 0.1.2

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

Container imageDigestPackageFixed in
dellnoantechnp/cloudeye-exporter:v2.0.316873356c882d
stdlib@go1.19.6
1.26.9

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3,570
dingtalk-botxxl-job-adminVerified publisher0.1.31 of 2See more

dingtalk-bot xxl-job-admin 0.1.3

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

Container imageDigestPackageFixed in
ghcr.io/dellnoantechnp/bitnami/redis:8.4.029064423c369
stdlib@go1.25.6
1.26.9

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3,874
fleet-managementxxl-job-adminVerified publisher1.0.01 of 1See more

fleet-management xxl-job-admin 1.0.0

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

Container imageDigestPackageFixed in
ghcr.io/dellnoantechnp/alloy-remote-config/fleet-management:master4371b566d238
stdlib@go1.25.10
1.26.9

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552
kadalu-operatorxxl-job-adminVerified publisher1.2.42 of 4See more

kadalu-operator xxl-job-admin 1.2.4

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

Container imageDigestPackageFixed in
kadalu/kadalu-operator:1.2.03726d7a805f2
stdlib@go1.20.8
1.26.9
raspbernetes/csi-node-driver-registrar:2.0.1a552705225fd
stdlib@go1.13.15
1.26.9

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7,144
kminionxxl-job-adminVerified publisher0.13.01 of 1See more

kminion xxl-job-admin 0.13.0

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

Container imageDigestPackageFixed in
redpandadata/kminion:v2.3.256da99e8d0d3
stdlib@go1.26.3
1.26.9

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992
nfs-subdir-external-provisionerxxl-job-adminVerified publisher4.0.181 of 1See more

nfs-subdir-external-provisioner xxl-job-admin 4.0.18

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

Container imageDigestPackageFixed in
registry.k8s.io/sig-storage/nfs-subdir-external-provisioner:v4.0.263d5e04551ec
stdlib@go1.15
1.26.9

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4,006
nightingalexxl-job-adminVerified publisher0.2.114 of 6See more

nightingale xxl-job-admin 0.2.11

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

Container imageDigestPackageFixed in
flashcatcloud/categraf:latest42e6ab16472e
stdlib@go1.25.14
1.26.9
flashcatcloud/nightingale:8.0.0-beta.11ea1b0aaabe09
stdlib@go1.23.9
1.26.9
library/mysql:5.74bc6bc963e6d
stdlib@go1.18.2
1.26.9
quay.io/prometheus/prometheus:v2.54.1f6639335d34a
stdlib@go1.22.6
1.26.9

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12,725
redisxxl-job-adminVerified publisher24.1.31 of 1See more

redis xxl-job-admin 24.1.3

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

Container imageDigestPackageFixed in
ghcr.io/dellnoantechnp/bitnami/redis:8.4.029064423c369
stdlib@go1.25.6
1.26.9

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613
pgbounceryasn77-pgbouncer0.0.81 of 1See more

pgbouncer yasn77-pgbouncer 0.0.8

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

Container imageDigestPackageFixed in
ghcr.io/yasn77/pgbouncer:v0.0.6cc8c13550e44
stdlib@go1.18.6
1.26.9

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1,883
ygdrassil-monitoringygdrassilVerified publisher0.4.07 of 10See more

ygdrassil-monitoring ygdrassil 0.4.0

7 of the 10 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
grafana/grafana:11.5.15781759b3d27
stdlib@go1.23.5
1.26.9
prom/alertmanager:v0.28.0d5155cfac40a
stdlib@go1.23.4
1.26.9
quay.io/prometheus-operator/prometheus-config-reloader:v0.79.2193280a33bc1
stdlib@go1.23.4
1.26.9
quay.io/prometheus/node-exporter:v1.8.24032c6d5bfd7
stdlib@go1.22.5
1.26.9
quay.io/prometheus/prometheus:v3.1.06559acbd5d77
stdlib@go1.23.4
1.26.9
quay.io/prometheus/pushgateway:v1.11.099392035ae99
stdlib@go1.23.4
1.26.9
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.14.037d841299325
stdlib@go1.23.3
1.26.9

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13,848
ceph-exporterygqygq2Verified publisher1.0.01 of 1See more

ceph-exporter ygqygq2 1.0.0

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

Container imageDigestPackageFixed in
digitalocean/ceph_exporter:latest19b163e3fb95
stdlib@go1.20
1.26.9

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6,811
mdbygqygq2Verified publisher5.0.71 of 1See more

mdb ygqygq2 5.0.7

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

Container imageDigestPackageFixed in
bitnami/nginx:latestb8d42f076789
stdlib@go1.26.8
1.26.9

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170
mod-chartygqygq2Verified publisher5.1.01 of 1See more

mod-chart ygqygq2 5.1.0

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

Container imageDigestPackageFixed in
bitnami/nginx:latestb8d42f076789
stdlib@go1.26.8
1.26.9

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170
prometheusalertygqygq2Verified publisher1.0.01 of 1See more

prometheusalert ygqygq2 1.0.0

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

Container imageDigestPackageFixed in
feiyu563/prometheus-alert:v4.9.1224cfa68cbd9
stdlib@go1.20.6
1.26.9

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2,366
utcookygqygq2Verified publisher2.1.41 of 1See more

utcook ygqygq2 2.1.4

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

Container imageDigestPackageFixed in
bitnami/nginx:latestb8d42f076789
stdlib@go1.26.8
1.26.9

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170
matrixdb-operatorymatrixOfficialVerified publisher0.13.01 of 2See more

matrixdb-operator ymatrix 0.13.0

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

Container imageDigestPackageFixed in
matrixdb/kubebuilder_kube-rbac-proxy:v0.12.0ed3c7e6291e8
stdlib@go1.18.1
1.26.9

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2,993
rawfile-csiymatrixVerified publisher0.2.14 of 4See more

rawfile-csi ymatrix 0.2.1

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

Container imageDigestPackageFixed in
matrixdb/custom-external-provisioner:4622a07d7-202204247e9ffe249a51
stdlib@go1.17.8
1.26.9
matrixdb/rawfile-csi:v0.2.195b2e38e913d
stdlib@go1.17.9
1.26.9
matrixdb/sig-storage_csi-node-driver-registrar:v2.2.0ba763bb01ddc
stdlib@go1.16
1.26.9
matrixdb/sig-storage_livenessprobe:v2.3.07ab06fe3d8a7
stdlib@go1.16
1.26.9

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12,475
nginx-vts-exporterymrs0.1.21 of 1See more

nginx-vts-exporter ymrs 0.1.2

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

Container imageDigestPackageFixed in
sophos/nginx-vts-exporter:latestf1073556b29b
stdlib@go1.13.6
1.26.9

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2,470
version-checkerymrs0.2.31 of 1See more

version-checker ymrs 0.2.3

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

Container imageDigestPackageFixed in
quay.io/jetstack/version-checker:v0.2.15f6f8ba0b671
stdlib@go1.15.2
1.26.9

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4,268
prometheus-monitoring-stackyotron-helm-charts1.2.03 of 3See more

prometheus-monitoring-stack yotron-helm-charts 1.2.0

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

Container imageDigestPackageFixed in
grafana/grafana:latestb28bae15e219
stdlib@go1.26.7
1.26.9
quay.io/prometheus/alertmanager:lateste9733bafb1bd
stdlib@go1.26.8
1.26.9
quay.io/prometheus/prometheus:latestefd719c99d83
stdlib@go1.27.1
1.26.9

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863
ical-filter-proxyyungwoodVerified publisher0.3.11 of 1See more

ical-filter-proxy yungwood 0.3.1

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

Container imageDigestPackageFixed in
yungwood/ical-filter-proxy:0.3.1ddc3f30ab05f
stdlib@go1.26.5
1.26.9

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259
synergy-wholesale-exporteryungwoodVerified publisher0.1.11 of 1See more

synergy-wholesale-exporter yungwood 0.1.1

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

Container imageDigestPackageFixed in
yungwood/synergy-wholesale-exporter:0.1.1054dce85989b
stdlib@go1.26.5
1.26.9

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259
zahori-consulzahoriVerified publisher1.0.12 of 2See more

zahori-consul zahori 1.0.1

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

Container imageDigestPackageFixed in
hashicorp/consul:1.15.3ddff34041c5c
stdlib@go1.20.4
1.26.9
hashicorp/consul-k8s-control-plane:1.1.262bed1bf8106
stdlib@go1.20.4
1.26.9

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6,701
zahori-moonzahoriVerified publisher1.0.13 of 3See more

zahori-moon zahori 1.0.1

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

Container imageDigestPackageFixed in
quay.io/aerokube/moon:2.5.1a8837b00ba1c
stdlib@go1.20.4
1.26.9
quay.io/aerokube/moon-conf:2.5.19ca307b30080
stdlib@go1.20.4
1.26.9
quay.io/aerokube/moon-ui:2.0.589990b146824
stdlib@go1.20.5
1.26.9

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5,025
zahori-schedulerzahoriVerified publisher1.0.11 of 1See more

zahori-scheduler zahori 1.0.1

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

Container imageDigestPackageFixed in
zahoriaut/zahori-scheduler:1.0.047d0979b1184
stdlib@go1.20.5
1.26.9

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3,117
jenkinszanise-jenkins-helm-chart0.1.01 of 1See more

jenkins zanise-jenkins-helm-chart 0.1.0

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

Container imageDigestPackageFixed in
jenkins/jenkins:ltsa660310e39ad
stdlib@go1.27.0
1.26.9

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2,134
posthogzeet0.23.22 of 9See more

posthog zeet 0.23.2

2 of the 9 container images this version deploys carry CVE-2026-56866.

Container imageDigestPackageFixed in
altinity/clickhouse-operator:0.19.07a85f522c5bc
stdlib@go1.17.13
1.26.9
altinity/metrics-exporter:latesta5206c713de7
stdlib@go1.26.8
1.26.9

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4,799
endlessh-gozekker6Verified publisher0.4.01 of 1See more

endlessh-go zekker6 0.4.0

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

Container imageDigestPackageFixed in
ghcr.io/shizunge/endlessh-go:2026.0730.08826dad32623
stdlib@go1.26.5
1.26.9

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827
karmazekker6Verified publisher0.22.01 of 1See more

karma zekker6 0.22.0

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

Container imageDigestPackageFixed in
lmierzwa/karma:v0.133f5d0a0ff4062
stdlib@go1.27.1
1.26.9

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148
zookeeper-exporterzookeeper-exporter0.1.01 of 1See more

zookeeper-exporter zookeeper-exporter 0.1.0

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

Container imageDigestPackageFixed in
dabealu/zookeeper-exporter:latest86106fec315f
stdlib@go1.14.15
1.26.9

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2,295
zoo-project-druzoo-projectOfficialVerified publisher0.10.92 of 6See more

zoo-project-dru zoo-project 0.10.9

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

Container imageDigestPackageFixed in
library/postgres:18.6-alpine3.2477f585114c32
stdlib@go1.24.6
1.26.9
zooproject/zoo-project:dru-51e7d55383f24594959b69e58518961c6aa66740da112e8d03f1
stdlib@go1.26.8
1.26.9

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7,149

Container images carrying it

6,174 by charts deploying them

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

Container imageDigestPackageFixed inUsed by
library/postgres:17-bookworm3645570cccdf
stdlib@go1.24.6
1.26.9
2
library/postgres:16.24aea012537ed
stdlib@go1.18.2
1.26.9
2
library/postgres:18.3-alpine:18.3-alpine3.2354451ecb8ab3
stdlib@go1.24.6
1.26.9
2
library/postgres:18.06f3e42ad37de
stdlib@go1.24.6
1.26.9
2
library/postgres:17.5aadf2c0696f5
stdlib@go1.18.2
1.26.9
2
library/postgres:14c2427de38f99
stdlib@go1.24.6
1.26.9
2
library/postgres:17c6222b54873a
stdlib@go1.24.6
1.26.9
2
library/postgres:9.6caddd35b05cd
stdlib@go1.16.7
1.26.9
2
library/postgres:16.4e62fbf9d3e2b
stdlib@go1.18.2
1.26.9
2
library/postgres:13-alpinefb9065b6e3e2
stdlib@go1.24.6
1.26.9
2
library/rabbitmq:4.3.6-management:4-management8dd6e3570dda
stdlib@go1.22.2
1.26.9
2
library/rabbitmq:4.1.0-management935b3f84c1e4
stdlib@go1.22.2
1.26.9
2
library/redis148bb5411c18
stdlib@go1.18.2
1.26.9
2
library/redis:7.2.3a7cee7c8178f
stdlib@go1.18.2
1.26.9
2
library/redmine:6.1.3-trixief474a901faec
stdlib@go1.24.6
1.26.9
2
library/telegraf:1.40-alpine6606553b5019
stdlib@go1.27.1
1.26.9
2
library/traefik:v3.7.16b9cbca6fac4
stdlib@go1.25.10
1.26.9
2
library/traefik:v2.57d5a6ae66572
stdlib@go1.17.6
1.26.9
2
library/traefik:2.4.8eda951fd29a8
stdlib@go1.16.2
1.26.9
2
library/traefik:2.2.8f5af5a5ce17f
stdlib@go1.14.6
1.26.9
2
library/zookeeper:3.9.5e6b279d01350
stdlib@go1.18.1
1.26.9
2
lightninglabs/lnd:v0.18.3-betaf86bbec4dfb3
stdlib@go1.22.5
1.26.9
2
linuxserver/cloud9:latest:version-1.29.245c5fe102ff3
stdlib@go1.17.11
1.26.9
2
listmonk/listmonk:v2.1.0d2eac77ddfad
stdlib@go1.17.6
1.26.9
2
listmonk/listmonk:latest:v6.2.0f535d59e1499
stdlib@go1.26.1
1.26.9
2
localstack/localstack-pro:latest801a3dff7f6a
stdlib@go1.27.1-X:nojsonv2
1.26.9
2
longhornio/longhorn-manager:v1.2.3dca34321452c
stdlib@go1.14.1
1.26.9
2
louislam/uptime-kuma:1.23.1396510915e6be
stdlib@go1.19.6
1.26.9
2
louislam/uptime-kuma:2.3.29aeb4e51d038
stdlib@go1.20.5
1.26.9
2
louislam/uptime-kuma:2.5.0a8610b3b4c38
stdlib@go1.20.5
1.26.9
2
louislam/uptime-kuma:2.5.5c74379ac4509
stdlib@go1.20.5
1.26.9
2
mattermost/mattermost-team-edition:10.11.2b8bd1246cb3a
stdlib@go1.24.5
1.26.9
2
matthiasluedtke/iconserver:v3.16.0661d607b0fbc
stdlib@go1.21.1
1.26.9
2
maxrocketinternet/datadog-controller:0.1a867315facf8
stdlib@go1.13.15
1.26.9
2
maxrocketinternet/soti-mobicontrol-exporter:0.61a281b76efa3
stdlib@go1.14
1.26.9
2
mesosphere/kubeaddons-catalog:v0.11.4073db43d0b8b
stdlib@go1.15.2
1.26.9
2
mesosphere/kubectl:v1.35.0-alpineea01a9387771
stdlib@go1.25.5
1.26.9
2
mikefarah/yq:4:latest4b3d9475d655
stdlib@go1.27.1
1.26.9
2
moby/buildkit:v0.32.2-rootless504731e577c2
stdlib@go1.25.7
1.26.9
2
nacos/nacos-server:latest1c191c30c8cd
stdlib@go1.26.5
1.26.9
2
natsio/nats-box:0.11.09fbf7bf684e4
stdlib@go1.18.1
1.26.9
2
natsio/nats-server-config-reloader:0.20.147094fcae2f4
stdlib@go1.24.8
1.26.9
2
natsio/nats-server-config-reloader:0.7.2911ce7ed2f55
stdlib@go1.19
1.26.9
2
natsio/nats-server-config-reloader:0.10.1e414cc7e6f59
stdlib@go1.19.4
1.26.9
2
natsio/prometheus-nats-exporter:0.10.016048afb67a5
stdlib@go1.19
1.26.9
2
natsio/prometheus-nats-exporter:0.11.031c02aac089a
stdlib@go1.20.3
1.26.9
2
neosmemo/memos:0.31.024c2707ddd8f
stdlib@go1.27.0
1.26.9
2
nousresearch/hermes-agent:v2026.9.24fca358f12efd
stdlib@go1.24.4
1.26.9
2
obolnetwork/charon:v1.10.0278c7e2897b6
stdlib@go1.26.1
1.26.9
2
oliver006/redis_exporter:v1.9.04af75e9f16f6
stdlib@go1.14.4
1.26.9
2

syft 1.42.1 · advisories as of 13 Oct 2026

Corrections: contact@stackradar.io

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