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
5,276
of 18,137 indexed, latest versions
Container images
6,115
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 5,276 of 18,137 indexed charts deploy, on 6,115 images.

Affected packageAffected versionsFixed inImages
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+208 more1.26.96,115
golang-1.19deb1.19.8-2no fix listed1
OSV records
DEBIAN-CVE-2026-56866GO-2026-6605
Trending
Rank 12 in indexed charts, since 9 Oct 2026. See the ranking →

Charts affected

5,276 by stars
ChartLatestAffected imagesRadar Score
pacmanpacman-mhVerified publisher0.1.281 of 2See more

pacman pacman-mh 0.1.28

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

Container imageDigestPackageFixed in
library/mongo:7.0.28-jammy88785f6f665a
stdlib@go1.24.0
1.26.9

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4,299
pact-brokerpact-broker-chart0.2.11 of 2See more

pact-broker pact-broker-chart 0.2.1

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

Container imageDigestPackageFixed in
pactfoundation/pact-broker:2.100.0.163801b40a4e9
stdlib@go1.14.4
1.26.9

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4,046
pagespages1.0.01 of 3See more

pages 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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21,570
pagespages101.0.01 of 3See more

pages pages10 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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21,570
pagespages1111.0.01 of 3See more

pages pages111 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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21,570
pagespages21.0.01 of 3See more

pages pages2 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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21,570
pagespages-alexchmielu1.0.01 of 3See more

pages pages-alexchmielu 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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21,570
pagespages-alps1.0.01 of 3See more

pages pages-alps 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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21,570
pagespages-alstom1.0.01 of 3See more

pages pages-alstom 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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21,570
pagespages-ambala1.0.01 of 3See more

pages pages-ambala 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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21,570
pagespages-andromeda1.0.01 of 3See more

pages pages-andromeda 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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21,570
pagespagesbadami1.0.01 of 3See more

pages pagesbadami 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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21,570
pagespages-blackburn1.0.01 of 3See more

pages pages-blackburn 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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21,570
pagespages-botes1.0.01 of 3See more

pages pages-botes 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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21,570
pagespages-brian1.0.01 of 3See more

pages pages-brian 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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21,570
pagespages-buckll1.0.01 of 3See more

pages pages-buckll 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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21,570
pagespages-camden1.0.01 of 3See more

pages pages-camden 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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21,570
pagespages-camden7711.0.01 of 3See more

pages pages-camden771 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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21,570
pagespages-diarmuidkeane1.0.01 of 3See more

pages pages-diarmuidkeane 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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21,570
pagespages-draco1.0.01 of 3See more

pages pages-draco 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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21,570
pagespages-ellora1.0.01 of 3See more

pages pages-ellora 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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21,570
pagespages-finchley1.0.01 of 3See more

pages pages-finchley 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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21,570
pagespages-fornax1.0.01 of 3See more

pages pages-fornax 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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21,570
pagespages-harsh1.0.01 of 3See more

pages pages-harsh 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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21,570
pagespagesk1.0.01 of 3See more

pages pagesk 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 →

21,570
pagespages-microservice-ashim1.0.01 of 3See more

pages pages-microservice-ashim 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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21,570
pagespages-mihai1.0.01 of 3See more

pages pages-mihai 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 →

21,570
pagespages-nivesh1.0.01 of 3See more

pages pages-nivesh 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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21,570
pagespagessandeepgudu1.0.01 of 3See more

pages pagessandeepgudu 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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21,570
pagespages-shubhanker1.0.01 of 3See more

pages pages-shubhanker 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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21,570
pagespages-ssharma09091.0.01 of 3See more

pages pages-ssharma0909 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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21,570
pagespages-sucharitha1.0.01 of 3See more

pages pages-sucharitha 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 →

21,570
pagespages-sudhir1.0.01 of 3See more

pages pages-sudhir 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 →

21,570
pagespages-sushi1.0.01 of 3See more

pages pages-sushi 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 →

21,570
pagespages-vasanth58141.0.01 of 3See more

pages pages-vasanth5814 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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21,570
pagespages-vjp1.0.01 of 3See more

pages pages-vjp 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 →

21,570
paguropaguroVerified publisher0.1.21 of 3See more

paguro paguro 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/dpicillo/paguro/paguro-node-installer:v0.1.2526c1324e1dc
stdlib@go1.26.6
1.26.9

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229
alistpanghuli0.1.51 of 2See more

alist panghuli 0.1.5

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

Container imageDigestPackageFixed in
xhofe/alist:v3.24.033f15a31be6c
stdlib@go1.20.5
1.26.9

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2,743
cloudrevepanghuli0.1.01 of 1See more

cloudreve panghuli 0.1.0

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

Container imageDigestPackageFixed in
cloudreve/cloudreve:3.8.009093aec5a20
stdlib@go1.20
1.26.9

Open the chart page →

3,247
radarr-testpanzer1119Verified publisher0.1.21 of 2See more

radarr-test panzer1119 0.1.2

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

Container imageDigestPackageFixed in
bitnami/kubectl:latestf7f9e4f64d9e
stdlib@go1.26.8
1.26.9

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1,603
paperclippaperclip-helmVerified publisher0.4.21 of 3See more

paperclip paperclip-helm 0.4.2

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

Container imageDigestPackageFixed in
library/postgres:17-alpineb0f9560a2de0
stdlib@go1.24.6
1.26.9

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703
paperclip-operatorpaperclip-operatorVerified publisher0.19.11 of 1See more

paperclip-operator paperclip-operator 0.19.1

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

Container imageDigestPackageFixed in
ghcr.io/paperclipinc/paperclip-operator:v0.19.10984b890eb38
stdlib@go1.25.0
1.26.9

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805
Parpar0.1.01 of 1See more

Par par 0.1.0

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

Container imageDigestPackageFixed in
ghcr.io/jmcgrath207/par:v0.1.09977511cb142
stdlib@go1.19.10
1.26.9

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1,597
parcaparca4.19.02 of 2See more

parca parca 4.19.0

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

Container imageDigestPackageFixed in
ghcr.io/parca-dev/parca:v0.20.00d1df8f436f7
stdlib@go1.21.1
1.26.9
ghcr.io/parca-dev/parca-agent:v0.28.06d6794f45f3e
stdlib@go1.21.4
1.26.9

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4,815
parcaparca-chart0.1.01 of 1See more

parca parca-chart 0.1.0

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

Container imageDigestPackageFixed in
ghcr.io/parca-dev/parca:v0.20.00d1df8f436f7
stdlib@go1.21.1
1.26.9

Open the chart page →

2,727
parcaparca-rr0.1.02 of 2See more

parca parca-rr 0.1.0

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

Container imageDigestPackageFixed in
ghcr.io/parca-dev/parca:v0.24.23776500fde82
stdlib@go1.25.1
1.26.9
ghcr.io/parca-dev/parca-agent:v0.42.0adc0eeb4dd05
stdlib@go1.24.7
1.26.9

Open the chart page →

3,501
parcial-1parcial-1-chart1.0.02 of 5See more

parcial-1 parcial-1-chart 1.0.0

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

Container imageDigestPackageFixed in
registry.k8s.io/ingress-nginx/controller:v1.13.137e489b22ac7
stdlib@go1.24.6
1.26.9
registry.k8s.io/ingress-nginx/kube-webhook-certgen:v1.6.1e63459ec5965
stdlib@go1.24.6
1.26.9

Open the chart page →

5,081
istio-cniparticuleio1.1.01 of 1See more

istio-cni particuleio 1.1.0

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

Container imageDigestPackageFixed in
gcr.io/istio-testing/install-cni:latestec6f9ea5757b
stdlib@go1.27.0
1.26.9

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1,284
istio-operatorparticuleio1.7.01 of 1See more

istio-operator particuleio 1.7.0

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

Container imageDigestPackageFixed in
gcr.io/istio-testing/operator:latest8d4576f7b98f
stdlib@go1.22.5
1.26.9

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5,013
scaleway-webhookparticuleio0.0.11 of 1See more

scaleway-webhook particuleio 0.0.1

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

Container imageDigestPackageFixed in
scaleway/cert-manager-webhook-scaleway:v0.0.1dcc14608d000
stdlib@go1.15.2
1.26.9

Open the chart page →

3,588

Container images carrying it

6,115 by charts deploying them

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

Container imageDigestPackageFixed inUsed by
registry.k8s.io/kube-apiserver:v1.25.0f6902791fb9a
stdlib@go1.19
1.26.9
1
registry.k8s.io/kubebuilder/kube-rbac-proxy:v0.16.0771a9a173e03
stdlib@go1.21.7
1.26.9
1
registry.k8s.io/kube-controller-manager:v1.25.066ce7d460e53
stdlib@go1.19
1.26.9
1
registry.k8s.io/kubectl:v1.32.73c5268158974
stdlib@go1.23.10
1.26.9
1
registry.k8s.io/kubectl:v1.35.9436cbaa8a019
stdlib@go1.26.8
1.26.9
1
registry.k8s.io/kubectl:v1.34.0497d298f891e
stdlib@go1.24.6
1.26.9
1
registry.k8s.io/kubectl:v1.35.64d8c68e8c2bf
stdlib@go1.25.11
1.26.9
1
registry.k8s.io/kubectl:v1.34.159bafa07ff3a
stdlib@go1.24.6
1.26.9
1
registry.k8s.io/kubectl:v1.36.36e4fce3c8365
stdlib@go1.26.5
1.26.9
1
registry.k8s.io/kubectl:v1.32.08ccae74fc039
stdlib@go1.23.3
1.26.9
1
registry.k8s.io/kubectl:v1.36.2b0d792e0d8df
stdlib@go1.26.4
1.26.9
1
registry.k8s.io/kube-scheduler:v1.26.110684e23172d9
stdlib@go1.20.11
1.26.9
1
registry.k8s.io/kube-scheduler:v1.28.73ae5620a33bb
stdlib@go1.21.7
1.26.9
1
registry.k8s.io/kube-scheduler:v1.23.143e149d206076
stdlib@go1.17.13
1.26.9
1
registry.k8s.io/kube-scheduler:v1.28.1146cf7475c8da
stdlib@go1.21.11
1.26.9
1
registry.k8s.io/kube-scheduler:v1.25.09330c53feca7
stdlib@go1.19
1.26.9
1
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.8.05658d0011a41
stdlib@go1.19.4
1.26.9
1
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.8.2ec5732e28f15
stdlib@go1.19.7
1.26.9
1
registry.k8s.io/kwok/kwok:v0.8.06d25aa8fbdfe
stdlib@go1.26.0
1.26.9
1
registry.k8s.io/metrics-server/metrics-server:v0.7.01c0419326500
stdlib@go1.21.6
1.26.9
1
registry.k8s.io/metrics-server/metrics-server:v0.7.1db3800085a09
stdlib@go1.21.8
1.26.9
1
registry.k8s.io/nfd/node-feature-discovery:v0.16.619ebca8b3804
stdlib@go1.22.8
1.26.9
1
registry.k8s.io/node-problem-detector/node-problem-detector:v0.8.2052f0618e9bc2
stdlib@go1.23.2
1.26.9
1
registry.k8s.io/node-problem-detector/node-problem-detector:v1.35.1c380751accc5
stdlib@go1.25.5
1.26.9
1
registry.k8s.io/prometheus-adapter/prometheus-adapter:v0.11.1e6a43c83ab16
stdlib@go1.20.4
1.26.9
1
registry.k8s.io/provider-os/cinder-csi-plugin:v1.37.1ad3832945f1e
stdlib@go1.26.5
1.26.9
1
registry.k8s.io/provider-os/manila-csi-plugin:v1.37.146373e7e6a4b
stdlib@go1.26.5
1.26.9
1
registry.k8s.io/provider-os/openstack-cloud-controller-manager:v1.37.15b1bf75c418e
stdlib@go1.26.5
1.26.9
1
registry.k8s.io/sig-storage/csi-attacher:v4.1.008721106b949
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/csi-attacher:v4.5.19dcd469f02bb
stdlib@go1.21.5
1.26.9
1
registry.k8s.io/sig-storage/csi-external-health-monitor-controller:v0.7.080b9ba94aa2a
stdlib@go1.18
1.26.9
1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.9.12cddcc716c19
stdlib@go1.20.5
1.26.9
1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.7.04a4cae5118c4
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.6.2a13bff2ed69a
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.0.1e07f914c32f0
stdlib@go1.15
1.26.9
1
registry.k8s.io/sig-storage/csi-provisioner:v6.4.06ebe60fd8ed6
stdlib@go1.26.6
1.26.9
1
registry.k8s.io/sig-storage/csi-provisioner:v5.0.27b9cdb5830d0
stdlib@go1.22.5
1.26.9
1
registry.k8s.io/sig-storage/csi-provisioner:v3.4.0e468dddcd275
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/csi-provisioner:v3.3.0ee3b525d5b89
stdlib@go1.18
1.26.9
1
registry.k8s.io/sig-storage/csi-resizer:v1.7.03a7bdf5d1057
stdlib@go1.19
1.26.9
1
registry.k8s.io/sig-storage/csi-resizer:v1.6.0425d8f1b7693
stdlib@go1.18
1.26.9
1
registry.k8s.io/sig-storage/csi-resizer:v2.3.048fb3deb93cd
stdlib@go1.26.6
1.26.9
1
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

syft 1.42.1 · advisories as of 16 Oct 2026

Corrections: contact@stackradar.io

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