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
- 5,533
- of 18,090 indexed, latest versions
- Container images
- 6,378
- 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 5,533 of 18,090 indexed charts deploy, on 6,378 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 | 6,378 |
| 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
5,533 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| kube-prometheus-stackprometheus-communityOfficialVerified publisher | 92.3.0 | 5 of 6See more | 1,434 |
| cert-managercert-managerOfficialVerified publisher | 1.21.2 | 4 of 4See more | 836 |
| argo-cdargoOfficialVerified publisher | 10.10.2 | 2 of 3See more | 2,659 |
| ingress-nginxingress-nginx | 4.15.1 | 2 of 2See more | 2,350 |
| prometheusprometheus-communityOfficialVerified publisher | 29.36.1 | 6 of 6See more | 1,606 |
| redisbitnamiVerified publisher | 28.3.1 | 1 of 1See more | 141 |
| traefiktraefikOfficialVerified publisher | 41.7.1 | 1 of 1See more | 218 |
| kubernetes-dashboardk8s-dashboard | 7.14.0 | 4 of 5See more | 5,000 |
| lokigrafana | 7.3.0 | 3 of 6See more | 5,337 |
| metrics-servermetrics-serverVerified publisher | 3.14.0 | 1 of 1See more | 462 |
| vaulthashicorpVerified publisher | 0.34.1 | 2 of 2See more | 1,186 |
| gitlabgitlabVerified publisher | 10.4.1 | 18 of 21See more | 22,130 |
| harborharborOfficialVerified publisher | 1.19.2 | 5 of 8See more | 3,363 |
| jenkinsjenkinsciOfficialVerified publisher | 5.9.67 | 1 of 2See more | 2,239 |
| external-secretsexternal-secrets-operatorVerified publisher | 2.12.0 | 1 of 1See more | 262 |
| external-dnsexternal-dnsVerified publisher | 1.23.0 | 1 of 1See more | 205 |
| longhornlonghorn | 1.13.0 | 3 of 3See more | 649 |
| gitlab-runnergitlabVerified publisher | 0.93.0 | 1 of 1See more | 650 |
| ciliumciliumOfficialVerified publisher | 1.20.2 | 3 of 3See more | 2,070 |
| airflowapache-airflowOfficialVerified publisher | 1.22.0 | 1 of 4See more | 3,859 |
| mongodbbitnamiVerified publisher | 20.0.0 | 1 of 1See more | 509 |
| velerovmware-tanzu | 12.2.1 | 1 of 1See more | 1,506 |
| metallbmetallbVerified publisher | 0.16.1 | 3 of 4See more | 3,409 |
| rancherrancher-stable | 2.15.2 | 2 of 2See more | 2,584 |
| cloudnative-pgcloudnative-pgVerified publisher | 0.29.1 | 1 of 1See more | 201 |
| kyvernokyvernoOfficialVerified publisher | 3.9.1 | 1 of 7See more | 236 |
| argo-workflowsargoOfficialVerified publisher | 2.0.12 | 3 of 3See more | 944 |
| giteagiteaOfficialVerified publisher | 12.7.0 | 2 of 4See more | 10,495 |
| oauth2-proxyoauth2-proxyOfficialVerified publisher | 10.7.1 | 1 of 1See more | 205 |
| nginxbitnamiVerified publisher | 25.2.1 | 1 of 1See more | 163 |
| wordpressbitnamiVerified publisher | 34.1.3 | 2 of 2See more | 722 |
| sealed-secretsbitnami-labsVerified publisher | 2.18.6 | 1 of 1See more | 675 |
| kedakedacore | 2.21.0 | 3 of 3See more | 615 |
| nginx-ingressnginxVerified publisher | 2.7.3 | 1 of 1See more | 1,643 |
| nfs-subdir-external-provisionernfs-subdir-external-provisioner | 4.0.18 | 1 of 1See more | 3,994 |
| artifact-hubartifact-hubVerified publisher | 1.23.0 | 6 of 7See more | 14,971 |
| kube-state-metricsprometheus-communityVerified publisher | 8.6.0 | 1 of 1See more | 314 |
| consulhashicorpVerified publisher | 2.0.4 | 2 of 2See more | 445 |
| mariadbbitnamiVerified publisher | 28.1.1 | 1 of 1See more | 141 |
| alloygrafana | 1.13.1 | 2 of 2See more | 950 |
| prometheus-blackbox-exporterprometheus-communityOfficialVerified publisher | 11.20.0 | 1 of 1See more | 205 |
| reloaderstakaterVerified publisher | 2.2.18 | 1 of 1See more | 201 |
| argo-rolloutsargoOfficialVerified publisher | 2.43.6 | 1 of 1See more | 361 |
| deschedulerdescheduler | 0.37.0 | 1 of 1See more | 617 |
| argo-cdargo-cd-oci | 10.10.2 | 2 of 3See more | 2,659 |
| jaegerjaegertracingOfficialVerified publisher | 4.14.1 | 1 of 1See more | 401 |
| jupyterhubjupyterhubOfficialVerified publisher | 4.4.2 | 2 of 7See more | 10,177 |
| mimir-distributedgrafana | 6.2.1 | 3 of 5See more | 3,051 |
| headlampheadlampOfficialVerified publisher | 0.45.0 | 1 of 1See more | 525 |
| argocd-image-updaterargoOfficialVerified publisher | 1.3.1 | 1 of 1See more | 1,257 |
Container images carrying it
6,378 by charts deploying them
A fixed version is listed for 2 of the 3 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| natsio/ | 4fbf6dacb847 | stdlib | 1.26.9 | 1 |
| natsio/ | 5387a5923572 | stdlib | 1.26.9 | 1 |
| natsio/ | 54b0d7ff058e | stdlib | 1.26.9 | 1 |
| natsio/ | bce728062c4f | stdlib | 1.26.9 | 1 |
| ncabatoff/ | 6f0549dc24e9 | stdlib | 1.26.9 | 1 |
| neo4j/ | 0c6c9ee5f7dc | stdlib | 1.26.9 | 1 |
| neosmemo/ | 3e1253477066 | stdlib | 1.26.9 | 1 |
| neosmemo/ | 3eefcc231141 | stdlib | 1.26.9 | 1 |
| neosmemo/ | c6defc2dfb98 | stdlib | 1.26.9 | 1 |
| neosu/ | 256530d8e5c6 | stdlib | 1.26.9 | 1 |
| nerzhul/ | 4215df511f31 | stdlib | 1.26.9 | 1 |
| netapp/ | 06f6c9a0653f | stdlib | 1.26.9 | 1 |
| netapp/ | 46a0066e1cf6 | stdlib | 1.26.9 | 1 |
| netapp/ | 8235a77cfc92 | stdlib | 1.26.9 | 1 |
| netapp/ | 49cfe552d9c2 | stdlib | 1.26.9 | 1 |
| netapp/ | a982458a70f7 | stdlib | 1.26.9 | 1 |
| netapp/ | ec22fc6e5c5a | stdlib | 1.26.9 | 1 |
| netapp/ | 58b9fac358bd | stdlib | 1.26.9 | 1 |
| netapp/ | cad26cd945d1 | stdlib | 1.26.9 | 1 |
| netapp/ | cd0c18d8f9ec | stdlib | 1.26.9 | 1 |
| netbirdio/ | 57740157b4d7 | stdlib | 1.26.9 | 1 |
| netbirdio/ | 0c9994b393ea | stdlib | 1.26.9 | 1 |
| netbirdio/ | 52682e5f48f9 | stdlib | 1.26.9 | 1 |
| netbirdio/ | 8bb1b26f3c8d | stdlib | 1.26.9 | 1 |
| netbirdio/ | b0adc4ad4ec6 | stdlib | 1.26.9 | 1 |
| netbirdio/ | ac6317722f6f | stdlib | 1.26.9 | 1 |
| netbirdio/ | d1da0c0179c9 | stdlib | 1.26.9 | 1 |
| netbirdio/ | 1aff236dc73f | stdlib | 1.26.9 | 1 |
| netbirdio/ | 872e3add0e1e | stdlib | 1.26.9 | 1 |
| netbirdio/ | a10762533793 | stdlib | 1.26.9 | 1 |
| netbirdio/ | d32f82514a24 | stdlib | 1.26.9 | 1 |
| netbirdio/ | 3104d5ca3a76 | stdlib | 1.26.9 | 1 |
| netbirdio/ | 46ce5a45538f | stdlib | 1.26.9 | 1 |
| netbirdio/ | 67176bcbf6ab | stdlib | 1.26.9 | 1 |
| netbirdio/ | d0fe9d51cdba | stdlib | 1.26.9 | 1 |
| netbirdio/ | e8f392611152 | stdlib | 1.26.9 | 1 |
| netboxcommunity/ | 91b823a05cb5 | stdlib | 1.26.9 | 1 |
| netdata/ | 1e50cc0b11f0 | stdlib | 1.26.9 | 1 |
| nethermind/ | 25f72063f6fc | stdlib | 1.26.9 | 1 |
| netrisai/ | c271efe749d0 | stdlib | 1.26.9 | 1 |
| netrisai/ | 53178bf173c2 | stdlib | 1.26.9 | 1 |
| netrisai/ | 14d82948a8b2 | stdlib | 1.26.9 | 1 |
| netrisai/ | a030a31289f4 | stdlib | 1.26.9 | 1 |
| netrisai/ | 0aa742a0b906 | stdlib | 1.26.9 | 1 |
| netrisai/ | 95abfb776bb4 | stdlib | 1.26.9 | 1 |
| netrisai/ | 44f60aa0d898 | stdlib | 1.26.9 | 1 |
| netskopeprivateaccess/ | 0b43204c37d6 | stdlib | 1.26.9 | 1 |
| neuvector/ | 824e29cf32c5 | stdlib | 1.26.9 | 1 |
| neuvector/ | 72e1deee40fb | stdlib | 1.26.9 | 1 |
| neuvector/ | ab4e4332053a | stdlib | 1.26.9 | 1 |