CVE-2026-56866
HighAdvisory
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
- 5,360
- of 18,104 indexed, latest versions
- Container images
- 6,204
- 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 5,360 of 18,104 indexed charts deploy, on 6,204 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| stdlibgolang | go1.13, go1.13.1, go1.13.3, go1.13.4+212 more | 1.26.9 | 6,204 |
| golang-1.19deb | 1.19.8-2 | no fix listed | 1 |
- OSV records
- DEBIAN-CVE-2026-56866GO-2026-6605
- Trending
- Rank 8 in indexed charts, since 9 Oct 2026. See the ranking →
Charts affected
5,360 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| kubemacpoolkubemacpoolVerified publisher | 0.3.0 | 1 of 1See more | 2,350 |
| kube-netlagkube-netlagVerified publisher | 1.1.0 | 1 of 1See more | 2,072 |
| kube-node-readykube-node-ready | 0.5.0 | 1 of 1See more | 1,001 |
| kubensynckubensync | 0.14.1 | 1 of 1See more | 215 |
| apm-serverkube-opsVerified publisher | 0.1.2 | 1 of 1See more | 8,431 |
| lokikube-opsVerified publisher | 1.7.3 | 1 of 1See more | 3,875 |
| promtailkube-opsVerified publisher | 1.5.1 | 1 of 2See more | 5,743 |
| kube-ovnkube-ovn-test | 1.14.0 | 1 of 1See more | 6,096 |
| kuberay-apiserverkuberay-operator | 1.7.1 | 2 of 2See more | 778 |
| kuberecordkuberecordVerified publisher | 0.5.0 | 1 of 1See more | 446 |
| kubereportkubereport | 1.1.0 | 1 of 1See more | 1,752 |
| adguard-homekubernetes-homelab-helm-chartsVerified publisher | 0.1.2 | 1 of 1See more | 1,064 |
| cloudflaredkubernetes-homelab-helm-chartsVerified publisher | 0.1.1 | 1 of 1See more | 2,045 |
| firefly-iiikubernetes-homelab-helm-chartsVerified publisher | 0.1.3 | 1 of 3See more | 5,372 |
| ghostkubernetes-homelab-helm-chartsVerified publisher | 0.2.3 | 2 of 2See more | 4,197 |
| navidromekubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 1,335 |
| pocket-idkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 2,018 |
| portfolio-trackerkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 3See more | 1,982 |
| qbittorrent-exporterkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 675 |
| scrutinykubernetes-homelab-helm-chartsVerified publisher | 0.2.2 | 2 of 3See more | 6,964 |
| syncthingkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 1,647 |
| tor-proxykubernetes-homelab-helm-chartsVerified publisher | 0.1.2 | 1 of 1See more | 1,891 |
| umamikubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 3See more | 2,939 |
| uptime-kumakubernetes-homelab-helm-chartsVerified publisher | 0.1.2 | 1 of 1See more | 7,949 |
| kubernetes-netskope-publisherkubernetes-netskope-publisherVerified publisher | 1.5.0 | 1 of 2See more | 42,139 |
| kubernetes-nmstatekubernetes-nmstateVerified publisher | 0.87.0 | 1 of 1See more | 847 |
| brudi-operatorkubernetes-replicator | 0.2.3 | 1 of 1See more | 4,398 |
| harbor-operatorkubernetes-replicator | 1.6.3 | 1 of 1See more | 1,818 |
| kube-httpcachekubernetes-replicator | 0.9.1 | 1 of 1See more | 5,468 |
| kubernetes-secret-generatorkubernetes-replicator | 3.4.1 | 1 of 1See more | 1,400 |
| servicegatewaykubernetes-replicator | 2.3.3 | 1 of 1See more | 1,270 |
| kubernetesweeklykubernetesweekly | 2.1.0 | 1 of 1See more | 2,519 |
| kube-secrets-exporterkube-secrets-exporter | 0.1.0 | 1 of 1See more | 1,111 |
| api-serverkubeshop | 0.11.16 | 1 of 2See more | 3,391 |
| kusk-gatewaykubeshop | 0.0.65 | 1 of 2See more | 2,455 |
| kusk-gateway-apikubeshop | 0.1.28 | 2 of 2See more | 3,945 |
| testkube-apikubeshop | 2.1.162 | 1 of 2See more | 2,202 |
| testkube-logskubeshop | 0.2.2 | 1 of 1See more | 2,046 |
| testkube-operatorkubeshop | 2.1.154 | 2 of 3See more | 2,021 |
| testkube-runnerkubeshop | 2.14.1 | 1 of 1See more | 222 |
| tracetestkubeshop | 0.3.39 | 1 of 2See more | 2,158 |
| cloudnative-pgkube-site-follower | 0.23.0 | 1 of 1See more | 1,455 |
| kubeskoopkubeskoop | 1.0.2 | 2 of 2See more | 5,604 |
| apisix-dashboardkubesphereVerified publisher | 0.3.0 | 1 of 1See more | 3,715 |
| apisix-ingress-controllerkubesphereVerified publisher | 0.8.0 | 1 of 2See more | 3,636 |
| fluentbit-operatorkubesphereVerified publisher | 0.1.0 | 1 of 2See more | 4,127 |
| gitlabkubesphereVerified publisher | 4.2.3 | 6 of 17See more | 50,723 |
| harborkubesphereVerified publisher | 1.9.3 | 7 of 11See more | 25,667 |
| pvc-autoresizerkubesphereVerified publisher | 0.1.0 | 1 of 1See more | 2,643 |
| storageclass-accessorkubesphereVerified publisher | 0.1.0 | 1 of 1See more | 2,590 |
Container images carrying it
6,204 by charts deploying them
A fixed version is listed for 1 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| cs3org/ | e80a4d67b352 | stdlib | 1.26.9 | 2 |
| csiplugin/ | 1fa83d45417f | stdlib | 1.26.9 | 2 |
| csiplugin/ | 00fcc441ea9f | stdlib | 1.26.9 | 2 |
| danielfm/ | 7152b84e57cb | stdlib | 1.26.9 | 2 |
| danielqsj/ | 4150e46b2e96 | stdlib | 1.26.9 | 2 |
| danielqsj/ | d1014f41712d | stdlib | 1.26.9 | 2 |
| datawire/ | 1f67a1292d2a | stdlib | 1.26.9 | 2 |
| deepflowce/ | bc1882f75c18 | stdlib | 1.26.9 | 2 |
| deepflowce/ | 3d7ae561cf60 | stdlib | 1.26.9 | 2 |
| devopsfaith/ | f8bdaa8a1a43 | stdlib | 1.26.9 | 2 |
| dexidp/ | 43655afd1a8f | stdlib | 1.26.9 | 2 |
| dmilhdef/ | fada1a6e7638 | stdlib | 1.26.9 | 2 |
| drone/ | 4359bf2bb3dc | stdlib | 1.26.9 | 2 |
| dunglas/ | 916834e49961 | stdlib | 1.26.9 | 2 |
| envoyproxy/ | 0049bcb384c5 | stdlib | 1.26.9 | 2 |
| epamedp/ | fc858071b7a1 | stdlib | 1.26.9 | 2 |
| epamedp/ | 295a008abcef | stdlib | 1.26.9 | 2 |
| epamedp/ | 88189f16f94b | stdlib | 1.26.9 | 2 |
| epamedp/ | 0b7eb7d5ca43 | stdlib | 1.26.9 | 2 |
| eqalpha/ | 6537505c4235 | stdlib | 1.26.9 | 2 |
| eqalpha/ | eceb1806730c | stdlib | 1.26.9 | 2 |
| falcosecurity/ | 1fe583eee4af | stdlib | 1.26.9 | 2 |
| falcosecurity/ | 0d427b8d5fc6 | stdlib | 1.26.9 | 2 |
| filebrowser/ | 86e8449ff8ff | stdlib | 1.26.9 | 2 |
| filebrowser/ | a469ea076d4a | stdlib | 1.26.9 | 2 |
| filebrowser/ | c5d0a75a0041 | stdlib | 1.26.9 | 2 |
| flanksource/ | 8d17f0c08b20 | stdlib | 1.26.9 | 2 |
| flashcatcloud/ | 42e6ab16472e | stdlib | 1.26.9 | 2 |
| foundationdb/ | 7d7b6985291e | stdlib | 1.26.9 | 2 |
| free5gc/ | 1bc96ff5a2a6 | stdlib | 1.26.9 | 2 |
| free5gc/ | 687ff4daf5da | stdlib | 1.26.9 | 2 |
| free5gc/ | e2a4dd98a4ed | stdlib | 1.26.9 | 2 |
| free5gc/ | 99e46b860efb | stdlib | 1.26.9 | 2 |
| free5gc/ | dfe8c68c04b4 | stdlib | 1.26.9 | 2 |
| free5gc/ | f712e8ecd927 | stdlib | 1.26.9 | 2 |
| free5gc/ | 60e38baa4b10 | stdlib | 1.26.9 | 2 |
| free5gc/ | 2f68df062a50 | stdlib | 1.26.9 | 2 |
| free5gc/ | c0783bcdcbdc | stdlib | 1.26.9 | 2 |
| free5gc/ | b6b362a39fdd | stdlib | 1.26.9 | 2 |
| free5gc/ | 9adeb18492cb | stdlib | 1.26.9 | 2 |
| freikin/ | 589e3606b11b | stdlib | 1.26.9 | 2 |
| friendsofgo/ | 39cfbecca342 | stdlib | 1.26.9 | 2 |
| frinx/ | bf8edd4f52f3 | stdlib | 1.26.9 | 2 |
| frinx/ | 9cd0147a09bd | stdlib | 1.26.9 | 2 |
| frinx/ | 4693dc627d32 | stdlib | 1.26.9 | 2 |
| garethgeorge/ | b85297975428 | stdlib | 1.26.9 | 2 |
| garugaru/ | 541852cafda5 | stdlib | 1.26.9 | 2 |
| githubexporter/ | a36fbedeedf8 | stdlib | 1.26.9 | 2 |
| goelankit/ | 0d9a82dcf026 | stdlib | 1.26.9 | 2 |
| gomods/ | efb811df7844 | stdlib | 1.26.9 | 2 |