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
- 5,295
- of 18,117 indexed, latest versions
- Container images
- 6,105
- 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 5,295 of 18,117 indexed charts deploy, on 6,105 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 | 6,105 |
| golang-1.19deb | 1.19.8-2 | no fix listed | 1 |
- OSV records
- DEBIAN-CVE-2026-56866GO-2026-6605
- Trending
- Rank 9 in indexed charts, since 9 Oct 2026. See the ranking →
Charts affected
5,295 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| log-generatorkube-loggingVerified publisher | 0.6.0 | 1 of 1See more | 1,989 |
| logging-demokube-loggingVerified publisher | 4.0.3 | 1 of 1See more | 1,933 |
| log-socketkube-loggingVerified publisher | 0.1.2 | 1 of 1See more | 2,090 |
| kubemacpoolkubemacpoolVerified publisher | 0.3.0 | 1 of 1See more | 2,358 |
| kube-netlagkube-netlagVerified publisher | 1.1.0 | 1 of 1See more | 2,079 |
| kube-node-readykube-node-ready | 0.5.0 | 1 of 1See more | 1,008 |
| kubensynckubensync | 0.14.1 | 1 of 1See more | 223 |
| apm-serverkube-opsVerified publisher | 0.1.2 | 1 of 1See more | 8,444 |
| lokikube-opsVerified publisher | 1.7.3 | 1 of 1See more | 3,887 |
| promtailkube-opsVerified publisher | 1.5.1 | 1 of 2See more | 5,755 |
| kube-ovnkube-ovn-test | 1.14.0 | 1 of 1See more | 6,104 |
| kuberay-apiserverkuberay-operator | 1.7.1 | 2 of 2See more | 794 |
| kuberecordkuberecordVerified publisher | 0.5.0 | 1 of 1See more | 454 |
| kubereportkubereport | 1.1.0 | 1 of 1See more | 1,759 |
| adguard-homekubernetes-homelab-helm-chartsVerified publisher | 0.1.2 | 1 of 1See more | 1,072 |
| cloudflaredkubernetes-homelab-helm-chartsVerified publisher | 0.1.1 | 1 of 1See more | 2,051 |
| firefly-iiikubernetes-homelab-helm-chartsVerified publisher | 0.1.3 | 1 of 3See more | 5,377 |
| ghostkubernetes-homelab-helm-chartsVerified publisher | 0.2.3 | 2 of 2See more | 4,212 |
| navidromekubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 1,342 |
| pocket-idkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 2,026 |
| portfolio-trackerkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 3See more | 1,990 |
| qbittorrent-exporterkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 682 |
| scrutinykubernetes-homelab-helm-chartsVerified publisher | 0.2.2 | 2 of 3See more | 6,974 |
| syncthingkubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 1See more | 1,654 |
| tor-proxykubernetes-homelab-helm-chartsVerified publisher | 0.1.2 | 1 of 1See more | 1,898 |
| umamikubernetes-homelab-helm-chartsVerified publisher | 0.1.0 | 1 of 3See more | 2,946 |
| uptime-kumakubernetes-homelab-helm-chartsVerified publisher | 0.1.2 | 1 of 1See more | 7,954 |
| kubernetes-netskope-publisherkubernetes-netskope-publisherVerified publisher | 1.5.0 | 1 of 2See more | 41,882 |
| kubernetes-nmstatekubernetes-nmstateVerified publisher | 0.87.0 | 1 of 1See more | 854 |
| brudi-operatorkubernetes-replicator | 0.2.3 | 1 of 1See more | 4,406 |
| harbor-operatorkubernetes-replicator | 1.6.3 | 1 of 1See more | 1,826 |
| kube-httpcachekubernetes-replicator | 0.9.1 | 1 of 1See more | 5,475 |
| kubernetes-secret-generatorkubernetes-replicator | 3.4.1 | 1 of 1See more | 1,408 |
| servicegatewaykubernetes-replicator | 2.3.3 | 1 of 1See more | 1,278 |
| kubernetesweeklykubernetesweekly | 2.1.0 | 1 of 1See more | 2,531 |
| kube-secrets-exporterkube-secrets-exporter | 0.1.0 | 1 of 1See more | 1,119 |
| api-serverkubeshop | 0.11.16 | 1 of 2See more | 3,404 |
| kusk-gatewaykubeshop | 0.0.65 | 1 of 2See more | 2,464 |
| kusk-gateway-apikubeshop | 0.1.28 | 2 of 2See more | 3,964 |
| testkube-apikubeshop | 2.1.162 | 1 of 2See more | 2,211 |
| testkube-logskubeshop | 0.2.2 | 1 of 1See more | 2,054 |
| testkube-operatorkubeshop | 2.1.154 | 2 of 3See more | 2,036 |
| testkube-runnerkubeshop | 2.14.1 | 1 of 1See more | 229 |
| tracetestkubeshop | 0.3.39 | 1 of 2See more | 2,166 |
| cloudnative-pgkube-site-follower | 0.23.0 | 1 of 1See more | 1,463 |
| kubeskoopkubeskoop | 1.0.2 | 2 of 2See more | 5,620 |
| apisix-dashboardkubesphereVerified publisher | 0.3.0 | 1 of 1See more | 3,728 |
| apisix-ingress-controllerkubesphereVerified publisher | 0.8.0 | 1 of 2See more | 3,648 |
| fluentbit-operatorkubesphereVerified publisher | 0.1.0 | 1 of 2See more | 4,140 |
| gitlabkubesphereVerified publisher | 4.2.3 | 6 of 17See more | 50,798 |
Container images carrying it
6,105 by charts deploying them
A fixed version is listed for 1 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| longhornio/ | 5b0bc1b88f0c | stdlib | 1.26.9 | 1 |
| longhornio/ | 7372f3c59239 | stdlib | 1.26.9 | 1 |
| longhornio/ | 83b79f57043f | stdlib | 1.26.9 | 1 |
| longhornio/ | ede61fe2a472 | stdlib | 1.26.9 | 1 |
| longhornio/ | fd245bae2e82 | stdlib | 1.26.9 | 1 |
| longhornio/ | 53950f78b7af | stdlib | 1.26.9 | 1 |
| longhornio/ | 9f6e5e3be8ab | stdlib | 1.26.9 | 1 |
| longhornio/ | cb9d6863e4c6 | stdlib | 1.26.9 | 1 |
| longhornio/ | efaf47aeb4e8 | stdlib | 1.26.9 | 1 |
| longhornio/ | 03a3ce6673df | stdlib | 1.26.9 | 1 |
| longhornio/ | 3870d52a2b0a | stdlib | 1.26.9 | 1 |
| longhornio/ | e60f36161511 | stdlib | 1.26.9 | 1 |
| longhornio/ | f22fb0254ae5 | stdlib | 1.26.9 | 1 |
| longhornio/ | 5875cef29348 | stdlib | 1.26.9 | 1 |
| looplj/ | 2c71eeaef295 | stdlib | 1.26.9 | 1 |
| lotest/ | 859b0d36f371 | stdlib | 1.26.9 | 1 |
| louislam/ | 2e478d3170bd | stdlib | 1.26.9 | 1 |
| louislam/ | 059b49d64739 | stdlib | 1.26.9 | 1 |
| louislam/ | 0b55bcb83a1c | stdlib | 1.26.9 | 1 |
| louislam/ | 4c364ef96aad | stdlib | 1.26.9 | 1 |
| louislam/ | 70233f4acb51 | stdlib | 1.26.9 | 1 |
| louislam/ | 917318f9d7be | stdlib | 1.26.9 | 1 |
| louislam/ | 91e963bfda56 | stdlib | 1.26.9 | 1 |
| louislam/ | 9865163f92c1 | stdlib | 1.26.9 | 1 |
| louislam/ | 9912da7d7d9b | stdlib | 1.26.9 | 1 |
| louislam/ | a4eab252e5a2 | stdlib | 1.26.9 | 1 |
| louislam/ | a84767d7934f | stdlib | 1.26.9 | 1 |
| louislam/ | bc6f244ecf27 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 258583dde8a7 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 4611915d66f6 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 7ff037a71c50 | stdlib | 1.26.9 | 1 |
| lumenvox/ | c01faf8d628d | stdlib | 1.26.9 | 1 |
| lumenvox/ | 9a69862e1248 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 7badfce0df13 | stdlib | 1.26.9 | 1 |
| lumenvox/ | dce4f18b4945 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 4cf9bad0381d | stdlib | 1.26.9 | 1 |
| lumenvox/ | 8090031da992 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 1f985ca4d603 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 98fe71067039 | stdlib | 1.26.9 | 1 |
| lumenvox/ | 26edd01fa2ee | stdlib | 1.26.9 | 1 |
| lumenvox/ | 57d15feb3603 | stdlib | 1.26.9 | 1 |
| machines/ | aff504cd28a8 | stdlib | 1.26.9 | 1 |
| macropower/ | c77ab5ea955c | stdlib | 1.26.9 | 1 |
| macropower/ | 1e9c4fb89787 | stdlib | 1.26.9 | 1 |
| macropower/ | dbb05debb785 | stdlib | 1.26.9 | 1 |
| makeplane/ | a3cdc662ba20 | stdlib | 1.26.9 | 1 |
| maldridge/ | 391de2b76128 | stdlib | 1.26.9 | 1 |
| manojchaulagain/ | f237b5f637ae | stdlib | 1.26.9 | 1 |
| mantlenetworkio/ | 6bf383d14291 | stdlib | 1.26.9 | 1 |
| maponyacharles/ | 58881351f309 | stdlib | 1.26.9 | 1 |