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
- 5,515
- of 18,090 indexed, latest versions
- Container images
- 6,355
- deployed by those charts
- Fix available
- 2 of 3
- affected packages
HTTP/1 client connection desynchronization after CONNECT rejection in net/http
Carried by container images the latest versions of 5,515 of 18,090 indexed charts deploy, on 6,355 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 | 6,355 |
| golang-1.19deb | 1.19.8-2 | no fix listed | 1 |
| ingress-nginx-controller-1.15apk | 1.15.10-r3 | 1.15.10-r8 | 1 |
- OSV records
- CGA-54v4-442r-c4x8DEBIAN-CVE-2026-56866GO-2026-6605
- Also known as
- CGA-h688-8p8g-gxgc, CGA-hmf8-6fq9-3ghf, CGA-m9cf-cw7m-mrq2, CGA-q4hr-6p8w-58w4, CGA-vrj7-cmwf-3pg8
- Trending
- Rank 8 in indexed charts, since 9 Oct 2026. See the ranking →
Charts affected
5,515 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| kube-prometheuschoerodon | 9.3.1 | 4 of 7See more | 17,143 |
| cloudflare-ddnscloudflareVerified publisher | 1.0.3 | 1 of 1See more | 622 |
| timescaledbcloudpirates-timescaledbVerified publisher | 0.13.12 | 1 of 1See more | 1,085 |
| openstack-cinder-csicloud-provider-openstack | 2.36.5 | 7 of 7See more | 6,419 |
| csi-secrets-store-provider-azurecsi-secrets-store-provider-azureVerified publisher | 1.8.2 | 5 of 5See more | 4,813 |
| paperless-ngxfmjstudios | 0.2.8 | 3 of 5See more | 35,065 |
| minifluxgabe565Verified publisher | 0.9.2 | 1 of 2See more | 1,957 |
| cubestoregadsme | 1.2.0 | 1 of 3See more | 3,934 |
| waypointhashicorpVerified publisher | 0.1.21 | 1 of 2See more | 4,963 |
| hivemq-operatorhivemqOfficialVerified publisher | 0.11.62 | 1 of 2See more | 9,407 |
| jaeger-all-in-onejaeger-all-in-oneVerified publisher | 0.1.12 | 1 of 1See more | 1,834 |
| cassandrakubelauncherVerified publisher | 0.1.29 | 1 of 1See more | 1,545 |
| etcdkubelauncherVerified publisher | 0.4.6 | 1 of 1See more | 682 |
| kafkakubelauncherVerified publisher | 0.1.28 | 1 of 1See more | 1,406 |
| keycloakkubelauncherVerified publisher | 0.5.0 | 1 of 1See more | 655 |
| kubectlkubelauncherVerified publisher | 0.3.0 | 1 of 1See more | 981 |
| mariadbkubelauncherVerified publisher | 1.0.0 | 1 of 1See more | 1,006 |
| mongodbkubelauncherVerified publisher | 0.4.7 | 1 of 1See more | 910 |
| rabbitmqkubelauncherVerified publisher | 0.2.16 | 1 of 1See more | 1,280 |
| rediskubelauncherVerified publisher | 0.5.4 | 1 of 1See more | 610 |
| zookeeperkubelauncherVerified publisher | 0.2.12 | 1 of 1See more | 1,209 |
| minecraft-proxyminecraft-server-chartsVerified publisher | 3.10.0 | 1 of 1See more | 3,267 |
| ntfyntfyVerified publisher | 0.5.23 | 1 of 1See more | 141 |
| mauticone-acre-fundVerified publisher | 0.1.7 | 1 of 3See more | 3,701 |
| opentelemetry-kube-stackopentelemetry-helmOfficialVerified publisher | 0.24.3 | 2 of 2See more | 951 |
| purelbpurelb | 0.0.0-106-ipv6-lbip-052cedab | 1 of 2See more | 5,546 |
| dex-k8s-authenticatorsagikazarmarkVerified publisher | 0.0.3 | 1 of 1See more | 3,961 |
| thanosstevehipwellVerified publisher | 1.24.1 | 1 of 1See more | 426 |
| gatustwin | 1.5.0 | 1 of 1See more | 1,130 |
| hedgedocadfinisVerified publisher | 0.6.1 | 1 of 2See more | 4,158 |
| caddyalekcVerified publisher | 0.9.2 | 1 of 1See more | 141 |
| aspnet-corebitnamiVerified publisher | 9.5.1 | 1 of 3See more | 166 |
| connaisseurconnaisseurVerified publisher | 2.13.0 | 2 of 2See more | 4,109 |
| kubeviewcowboysysopVerified publisher | 6.0.0 | 1 of 1See more | 2,541 |
| dependabot-gitlabdependabot-gitlabVerified publisher | 6.3.0 | 3 of 3See more | 43,319 |
| code-serverdeploy-code-server | 1.0.3 | 1 of 2See more | 6,403 |
| devtron-operatordevtron | 0.23.3 | 10 of 11See more | 41,631 |
| drone-runner-kubedroneVerified publisher | 0.1.10 | 1 of 1See more | 3,026 |
| fluent-operatorfluent | 4.3.0 | 1 of 1See more | 362 |
| gatekeepergogatekeeperVerified publisher | 0.1.66 | 1 of 1See more | 131 |
| grafana-operatorgrafana | 5.25.0 | 1 of 1See more | 153 |
| kubernetes-ingresshaproxytechVerified publisher | 1.54.2 | 1 of 1See more | 524 |
| envoy-gatewayhelmforgeVerified publisher | 2.1.2 | 3 of 3See more | 3,386 |
| n8nhelmforgeVerified publisher | 2.1.3 | 1 of 2See more | 1,948 |
| ilumilumOfficialVerified publisher | 6.7.3 | 6 of 19See more | 27,560 |
| syncthingk8s-home-lab-repo | 5.2.0 | 1 of 1See more | 1,466 |
| kube-greenkube-green-officialOfficialVerified publisher | 0.7.1 | 1 of 1See more | 911 |
| lakekeeperlakekeeperVerified publisher | 0.12.0 | 1 of 2See more | 2,686 |
| temporallemontechVerified publisher | 0.37.0 | 6 of 13See more | 21,530 |
| litmuslitmuschaos | 3.30.0 | 2 of 6See more | 8,925 |
Container images carrying it
6,355 by charts deploying them
A fixed version is listed for 2 of the 3 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| keptncontrib/ | 29969dd547de | stdlib | 1.26.9 | 1 |
| keptn/ | 6bc3df9e0d6a | stdlib | 1.26.9 | 1 |
| keptn/ | 72e17527a4f9 | stdlib | 1.26.9 | 1 |
| keptnsandbox/ | 6e6d323dd7ae | stdlib | 1.26.9 | 1 |
| kesque/ | ce85c1e7d613 | stdlib | 1.26.9 | 1 |
| keyauthoritydh/ | b2519da39b25 | stdlib | 1.26.9 | 1 |
| keyporttech/ | 5bd7955ea2f1 | stdlib | 1.26.9 | 1 |
| kfirfer/ | c257c1e0e8b9 | stdlib | 1.26.9 | 1 |
| kfirfer/ | 81e5c4e5d70e | stdlib | 1.26.9 | 1 |
| kfserving/ | 63d79d04c2e3 | stdlib | 1.26.9 | 1 |
| khairul169/ | 17c793551873 | stdlib | 1.26.9 | 1 |
| khaliq/ | 8a7ed75c9aab | stdlib | 1.26.9 | 1 |
| khaliq/ | 49f96888d2ab | stdlib | 1.26.9 | 1 |
| kiosksh/ | 501725ba2025 | stdlib | 1.26.9 | 1 |
| klutchell/ | a98e8d13314f | stdlib | 1.26.9 | 1 |
| komodorio/ | 258a9044e658 | stdlib | 1.26.9 | 1 |
| komodorio/ | 9678d02c3f2e | stdlib | 1.26.9 | 1 |
| kong/ | 03510967482b | stdlib | 1.26.9 | 1 |
| kong/ | 814eaeee4cc8 | stdlib | 1.26.9 | 1 |
| kong/ | 5e66021b64a8 | stdlib | 1.26.9 | 1 |
| kong/ | 60e4102ab2da | stdlib | 1.26.9 | 1 |
| kong/ | 999213b98257 | stdlib | 1.26.9 | 1 |
| kong/ | a154795691d1 | stdlib | 1.26.9 | 1 |
| kong/ | 8191df5c7019 | stdlib | 1.26.9 | 1 |
| kronosorg/ | 301da21c59a5 | stdlib | 1.26.9 | 1 |
| krontechnology/ | 8b42fad987b3 | stdlib | 1.26.9 | 1 |
| krontechnology/ | e078d54c1711 | stdlib | 1.26.9 | 1 |
| kserve/ | 22ff858b57c1 | stdlib | 1.26.9 | 1 |
| kserve/ | f0692a9ea09f | stdlib | 1.26.9 | 1 |
| kubearmor/ | a08141311045 | stdlib | 1.26.9 | 1 |
| kubearmor/ | 43674bb4806f | stdlib | 1.26.9 | 1 |
| kubearmor/ | f5d21795c0d7 | stdlib | 1.26.9 | 1 |
| kubearmor/ | f82b9c97e97d | stdlib | 1.26.9 | 1 |
| kubearmor/ | b7b92a447f15 | stdlib | 1.26.9 | 1 |
| kubebb/ | a3dba2a95cef | stdlib | 1.26.9 | 1 |
| kubebb/ | f83cd256229b | stdlib | 1.26.9 | 1 |
| kubebb/ | 20509de4b399 | stdlib | 1.26.9 | 1 |
| kubebb/ | 60d3cba0c267 | stdlib | 1.26.9 | 1 |
| kubebb/ | 2b9e7f451d6b | stdlib | 1.26.9 | 1 |
| kubebb/ | e366c34a9b8d | stdlib | 1.26.9 | 1 |
| kubebb/ | 8ffbfa2d67e9 | stdlib | 1.26.9 | 1 |
| kubebb/ | 0ba03fcee3a7 | stdlib | 1.26.9 | 1 |
| kubebb/ | 067673df26a6 | stdlib | 1.26.9 | 1 |
| kubebb/ | 58d5efec568b | stdlib | 1.26.9 | 1 |
| kubebb/ | 163ebbfc7a82 | stdlib | 1.26.9 | 1 |
| kubebb/ | 2b5894ef1e2f | stdlib | 1.26.9 | 1 |
| kubebb/ | 65bb40b353db | stdlib | 1.26.9 | 1 |
| kubebuilder/ | 3c4f708c6204 | stdlib | 1.26.9 | 1 |
| kubedb/ | 5829bcedcb0d | stdlib | 1.26.9 | 1 |
| kubedb/ | 7d27865514ee | stdlib | 1.26.9 | 1 |