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
- 5,306
- of 18,108 indexed, latest versions
- Container images
- 6,104
- 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 5,306 of 18,108 indexed charts deploy, on 6,104 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 | 6,104 |
| 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
5,306 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| answerhelmforgeVerified publisher | 1.5.3 | 1 of 1See more | 886 |
| appwritehelmforgeVerified publisher | 2.0.3 | 2 of 5See more | 5,361 |
| automatischhelmforgeVerified publisher | 1.3.9 | 2 of 4See more | 6,607 |
| booklorehelmforgeVerified publisher | 2.0.2 | 1 of 3See more | 2,560 |
| castopodhelmforgeVerified publisher | 1.2.10 | 2 of 3See more | 10,831 |
| certimatehelmforgeVerified publisher | 1.0.9 | 1 of 1See more | 258 |
| chiefonboardinghelmforgeVerified publisher | 1.1.15 | 1 of 3See more | 8,763 |
| ckanhelmforgeVerified publisher | 1.3.10 | 2 of 6See more | 11,614 |
| cloudflaredhelmforgeVerified publisher | 1.5.17 | 1 of 1See more | 624 |
| countlyhelmforgeVerified publisher | 1.2.8 | 2 of 3See more | 76,314 |
| dawarichhelmforgeVerified publisher | 1.0.3 | 2 of 4See more | 12,667 |
| 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 | 10,115 |
| drupalhelmforgeVerified publisher | 1.2.15 | 1 of 2See more | 4,535 |
| entehelmforgeVerified publisher | 1.0.2 | 2 of 4See more | 5,245 |
| ghosthelmforgeVerified publisher | 1.2.10 | 2 of 3See more | 3,916 |
| ghostfoliohelmforgeVerified publisher | 1.0.1 | 1 of 4See more | 5,154 |
| giteahelmforgeVerified publisher | 1.1.21 | 1 of 1See more | 905 |
| github-mcp-serverhelmforgeVerified publisher | 1.0.3 | 1 of 1See more | 744 |
| glancehelmforgeVerified publisher | 1.0.0 | 1 of 1See more | 376 |
| gophishhelmforgeVerified publisher | 0.1.6 | 1 of 1See more | 4,205 |
| hermes-agenthelmforgeVerified publisher | 1.0.1 | 1 of 1See more | 6,975 |
| hoppscotchhelmforgeVerified publisher | 1.1.12 | 2 of 2See more | 2,689 |
| immichhelmforgeVerified publisher | 1.2.10 | 1 of 5See more | 13,216 |
| jenkinshelmforgeVerified publisher | 1.0.9 | 1 of 1See more | 3,470 |
| komgahelmforgeVerified publisher | 1.4.16 | 1 of 1See more | 37,594 |
| kubernetes-mcp-serverhelmforgeVerified publisher | 1.0.7 | 1 of 1See more | 311 |
| listmonkhelmforgeVerified publisher | 1.1.14 | 3 of 3See more | 3,709 |
| medikeephelmforgeVerified publisher | 2.0.2 | 2 of 3See more | 6,699 |
| memoshelmforgeVerified publisher | 2.0.2 | 1 of 2See more | 509 |
| metabasehelmforgeVerified publisher | 1.2.30 | 1 of 3See more | 1,950 |
| metrics-serverhelmforgeVerified publisher | 1.0.4 | 1 of 1See more | 462 |
| middlewarehelmforgeVerified publisher | 1.2.8 | 2 of 4See more | 10,731 |
| minecrafthelmforgeVerified publisher | 1.5.5 | 1 of 1See more | 5,168 |
| mongodbhelmforgeVerified publisher | 1.8.2 | 1 of 1See more | 1,322 |
| moodlehelmforgeVerified publisher | 1.1.3 | 1 of 2See more | 7,283 |
| mysqlhelmforgeVerified publisher | 2.0.4 | 1 of 1See more | 797 |
| netboxhelmforgeVerified publisher | 2.0.3 | 2 of 4See more | 4,903 |
| nextcloudhelmforgeVerified publisher | 2.0.0 | 1 of 3See more | 7,685 |
| 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 | 3,803 |
| openreplayhelmforgeVerified publisher | 1.0.0 | 1See more | — |
| paprahelmforgeVerified publisher | 1.0.0 | 1 of 1See more | 3,744 |
| pimcorehelmforgeVerified publisher | 2.0.4 | 2 of 6See more | 3,420 |
| pocket-idhelmforgeVerified publisher | 1.0.0 | 1 of 2See more | 705 |
| questdbhelmforgeVerified publisher | 1.0.0 | 1See more | — |
| reactive-resumehelmforgeVerified publisher | 1.0.0 | 2 of 4See more | 3,937 |
Container images carrying it
6,104 by charts deploying them
A fixed version is listed for 1 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| jeboehm/ | 5fb2f31c940d | stdlib | 1.26.9 | 1 |
| jeboehm/ | 9da13edf5aa8 | stdlib | 1.26.9 | 1 |
| jenkins/ | 95313257a8cd | stdlib | 1.26.9 | 1 |
| jenkins/ | c1e4c349365f | stdlib | 1.26.9 | 1 |
| jenkins/ | de4fea113221 | stdlib | 1.26.9 | 1 |
| jhaals/ | 26873480863b | stdlib | 1.26.9 | 1 |
| jhaals/ | 6bca8d5a4914 | stdlib | 1.26.9 | 1 |
| jhaals/ | 6c33d9c813f7 | stdlib | 1.26.9 | 1 |
| jhaals/ | 916a1cf45d36 | stdlib | 1.26.9 | 1 |
| jhaals/ | 934e4f2c016f | stdlib | 1.26.9 | 1 |
| jhaals/ | 9516e3b3e88c | stdlib | 1.26.9 | 1 |
| jhaals/ | b64a1a8ace1b | stdlib | 1.26.9 | 1 |
| jhidalgo3/ | 0390e155c46d | stdlib | 1.26.9 | 1 |
| jhonbrownn/ | 8f6551ecc98c | stdlib | 1.26.9 | 1 |
| jhonbrownn/ | 68d6223ea366 | stdlib | 1.26.9 | 1 |
| jitesoft/ | 7f25594d4f33 | stdlib | 1.26.9 | 1 |
| jkaninda/ | 8cfda26ecb7d | stdlib | 1.26.9 | 1 |
| jkremser/ | e35cf56ef183 | stdlib | 1.26.9 | 1 |
| jmferrer/ | 030f68ec6998 | stdlib | 1.26.9 | 1 |
| joeelliott/ | b4acd14642d0 | stdlib | 1.26.9 | 1 |
| johnblack77/ | 816f4e2fea4a | stdlib | 1.26.9 | 1 |
| juicedata/ | 3e4daf9626d5 | stdlib | 1.26.9 | 1 |
| juicedata/ | 43978fc60798 | stdlib | 1.26.9 | 1 |
| juicedata/ | d915e899e322 | stdlib | 1.26.9 | 1 |
| junktext/ | a70936c04aed | stdlib | 1.26.9 | 1 |
| jupyterhub/ | a395326989c3 | stdlib | 1.26.9 | 1 |
| justusbunsi/ | 18dd43b470d9 | stdlib | 1.26.9 | 1 |
| jwilder/ | 839cd6793d19 | stdlib | 1.26.9 | 1 |
| jwkohnen/ | 8cb711bf3bcb | stdlib | 1.26.9 | 1 |
| k8scloudprovider/ | a30c7a2a594a | stdlib | 1.26.9 | 1 |
| k8scloudprovider/ | 6ddf80b34265 | stdlib | 1.26.9 | 1 |
| kadalu/ | 3726d7a805f2 | stdlib | 1.26.9 | 1 |
| kaiso/ | e0e22b928bdd | stdlib | 1.26.9 | 1 |
| kayrosuno/ | f3bd44b29b0d | stdlib | 1.26.9 | 1 |
| kazem26/ | 268b7c6a59dd | stdlib | 1.26.9 | 1 |
| keelhq/ | 02ac4ea616c4 | stdlib | 1.26.9 | 1 |
| keeper/ | 3eb609f3e60c | stdlib | 1.26.9 | 1 |
| keeper/ | aeb5476b95f0 | stdlib | 1.26.9 | 1 |
| kenchrcum/ | c326e28a8f5f | stdlib | 1.26.9 | 1 |
| 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 |