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 |
|---|---|---|---|
| affinehelmforgeVerified publisher | 1.0.2 | 1 of 3See more | 4,854 |
| alfiohelmforgeVerified publisher | 1.2.12 | 1 of 3See more | 2,539 |
| answerhelmforgeVerified publisher | 1.5.3 | 1 of 1See more | 886 |
| appwritehelmforgeVerified publisher | 2.0.3 | 2 of 5See more | 5,363 |
| automatischhelmforgeVerified publisher | 1.3.9 | 2 of 4See more | 6,609 |
| booklorehelmforgeVerified publisher | 2.0.2 | 1 of 3See more | 2,560 |
| castopodhelmforgeVerified publisher | 1.2.10 | 2 of 3See more | 10,832 |
| certimatehelmforgeVerified publisher | 1.0.9 | 1 of 1See more | 258 |
| chiefonboardinghelmforgeVerified publisher | 1.1.15 | 1 of 3See more | 8,764 |
| ckanhelmforgeVerified publisher | 1.3.10 | 2 of 6See more | 11,613 |
| cloudflaredhelmforgeVerified publisher | 1.5.17 | 1 of 1See more | 625 |
| countlyhelmforgeVerified publisher | 1.2.8 | 2 of 3See more | 76,305 |
| dawarichhelmforgeVerified publisher | 1.0.3 | 2 of 4See more | 12,670 |
| ddns-updaterhelmforgeVerified publisher | 1.4.12 | 1 of 1See more | 574 |
| discount-bandithelmforgeVerified publisher | 2.0.9 | 2 of 3See more | 36,249 |
| druidhelmforgeVerified publisher | 1.3.6 | 2 of 4See more | 10,112 |
| drupalhelmforgeVerified publisher | 1.2.15 | 1 of 2See more | 4,535 |
| entehelmforgeVerified publisher | 1.0.2 | 2 of 4See more | 5,246 |
| ghosthelmforgeVerified publisher | 1.2.10 | 2 of 3See more | 3,917 |
| ghostfoliohelmforgeVerified publisher | 1.0.1 | 1 of 4See more | 5,157 |
| giteahelmforgeVerified publisher | 1.1.21 | 1 of 1See more | 905 |
| github-mcp-serverhelmforgeVerified publisher | 1.0.3 | 1 of 1See more | 745 |
| glancehelmforgeVerified publisher | 1.0.0 | 1 of 1See more | 376 |
| gophishhelmforgeVerified publisher | 0.1.6 | 1 of 1See more | 4,200 |
| hermes-agenthelmforgeVerified publisher | 1.0.1 | 1 of 1See more | 6,976 |
| hoppscotchhelmforgeVerified publisher | 1.1.12 | 2 of 2See more | 2,807 |
| immichhelmforgeVerified publisher | 1.2.10 | 1 of 5See more | 13,216 |
| jenkinshelmforgeVerified publisher | 1.0.9 | 1 of 1See more | 3,471 |
| komgahelmforgeVerified publisher | 1.4.16 | 1 of 1See more | 37,589 |
| kubernetes-mcp-serverhelmforgeVerified publisher | 1.0.7 | 1 of 1See more | 311 |
| listmonkhelmforgeVerified publisher | 1.1.14 | 3 of 3See more | 3,710 |
| medikeephelmforgeVerified publisher | 2.0.2 | 2 of 3See more | 6,700 |
| memoshelmforgeVerified publisher | 2.0.2 | 1 of 2See more | 509 |
| metabasehelmforgeVerified publisher | 1.2.30 | 1 of 3See more | 2,068 |
| metrics-serverhelmforgeVerified publisher | 1.0.4 | 1 of 1See more | 462 |
| middlewarehelmforgeVerified publisher | 1.2.8 | 2 of 4See more | 10,728 |
| minecrafthelmforgeVerified publisher | 1.5.5 | 1 of 1See more | 5,167 |
| mongodbhelmforgeVerified publisher | 1.8.2 | 1 of 1See more | 1,499 |
| moodlehelmforgeVerified publisher | 1.1.3 | 1 of 2See more | 7,284 |
| mysqlhelmforgeVerified publisher | 2.0.4 | 1 of 1See more | 797 |
| netboxhelmforgeVerified publisher | 2.0.3 | 2 of 4See more | 4,906 |
| nextcloudhelmforgeVerified publisher | 2.0.0 | 1 of 3See more | 7,688 |
| ntfyhelmforgeVerified publisher | 1.2.2 | 1 of 1See more | 401 |
| oauth2-proxyhelmforgeVerified publisher | 1.0.6 | 1 of 1See more | 272 |
| olivetinhelmforgeVerified publisher | 1.2.2 | 1 of 2See more | 731 |
| opencuthelmforgeVerified publisher | 1.1.11 | 1 of 5See more | 3,805 |
| paprahelmforgeVerified publisher | 1.0.0 | 1 of 1See more | 3,745 |
| pimcorehelmforgeVerified publisher | 2.0.4 | 2 of 6See more | 3,420 |
| pocket-idhelmforgeVerified publisher | 1.0.0 | 1 of 2See more | 705 |
| reactive-resumehelmforgeVerified publisher | 1.0.0 | 2 of 4See more | 4,056 |
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 |
|---|---|---|---|---|
| ethpandaops/ | 89424dbe2d6b | stdlib | 1.26.9 | 3 |
| glanceapp/ | 9dfb09470b20 | stdlib | 1.26.9 | 3 |
| goharbor/ | d7b780d23721 | stdlib | 1.26.9 | 3 |
| goharbor/ | f71a4452a095 | stdlib | 1.26.9 | 3 |
| goharbor/ | 223d5cb49d5d | stdlib | 1.26.9 | 3 |
| goharbor/ | c4ebef61ceb5 | stdlib | 1.26.9 | 3 |
| goharbor/ | 215c07b71c37 | stdlib | 1.26.9 | 3 |
| grafana/ | 00568d89c4f8 | stdlib | 1.26.9 | 3 |
| grafana/ | 121a7a9ece6d | stdlib | 1.26.9 | 3 |
| grafana/ | 69a5d2d957ca | stdlib | 1.26.9 | 3 |
| grafana/ | a0f881232a6f | stdlib | 1.26.9 | 3 |
| grafana/ | 1107dd5274e0 | stdlib | 1.26.9 | 3 |
| grafana/ | 44148ad243c0 | stdlib | 1.26.9 | 3 |
| grafana/ | 58a6c186ce78 | stdlib | 1.26.9 | 3 |
| grafana/ | 0dac7d5cb383 | stdlib | 1.26.9 | 3 |
| grafana/ | 626900031c4e | stdlib | 1.26.9 | 3 |
| groundnuty/ | c14d7271e401 | stdlib | 1.26.9 | 3 |
| hashicorp/ | 1c59f007df8e | stdlib | 1.26.9 | 3 |
| hashicorp/ | 9334d7f4bcf0 | stdlib | 1.26.9 | 3 |
| hashicorp/ | fcb75f691c8b | stdlib | 1.26.9 | 3 |
| hashicorp/ | 5be49781ecf7 | stdlib | 1.26.9 | 3 |
| hashicorp/ | 55e27b080c9b | stdlib | 1.26.9 | 3 |
| hetznercloud/ | 024ea4b07161 | stdlib | 1.26.9 | 3 |
| jacobalberty/ | 896c0ab82d33 | stdlib | 1.26.9 | 3 |
| kubegems/ | a730bcf9322a | stdlib | 1.26.9 | 3 |
| kubernetesui/ | 96a702cfd339 | stdlib | 1.26.9 | 3 |
| kubernetesui/ | 53e9917898bf | stdlib | 1.26.9 | 3 |
| kubernetesui/ | 5154b68252bd | stdlib | 1.26.9 | 3 |
| kubernetesui/ | cc7c31bd2d84 | stdlib | 1.26.9 | 3 |
| kubespheredev/ | 23a03c9c381f | stdlib | 1.26.9 | 3 |
| l7mp/ | c4654dade66e | stdlib | 1.26.9 | 3 |
| library/ | f2a1290d0463 | stdlib | 1.26.9 | 3 |
| library/ | af96c680a7e1 | stdlib | 1.26.9 | 3 |
| library/ | 5d7043a4ffe0 | stdlib | 1.26.9 | 3 |
| library/ | 9854f7139445 | stdlib | 1.26.9 | 3 |
| library/ | b83efabe3e7d | stdlib | 1.26.9 | 3 |
| library/ | cd3fcd4ecdda | stdlib | 1.26.9 | 3 |
| library/ | 3162a6ead070 | stdlib | 1.26.9 | 3 |
| library/ | 468d34fefd63 | stdlib | 1.26.9 | 3 |
| library/ | 4ea9e5ed0659 | stdlib | 1.26.9 | 3 |
| library/ | 5d2aa4a7b5f9 | stdlib | 1.26.9 | 3 |
| library/ | 65b16a8b326e | stdlib | 1.26.9 | 3 |
| library/ | 6737476511d4 | stdlib | 1.26.9 | 3 |
| library/ | 724292da1f2e | stdlib | 1.26.9 | 3 |
| library/ | 1be55279f18a | stdlib | 1.26.9 | 3 |
| library/ | 24841fe2de73 | stdlib | 1.26.9 | 3 |
| mcp/ | 9362bcf6aa0e | stdlib | 1.26.9 | 3 |
| meshery/ | 44b64ee128fb | stdlib | 1.26.9 | 3 |
| mikefarah/ | 6fc625c402de | stdlib | 1.26.9 | 3 |
| minio/ | 54393e03f3b2 | stdlib | 1.26.9 | 3 |