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
- 5,323
- of 18,117 indexed, latest versions
- Container images
- 6,150
- 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 5,323 of 18,117 indexed charts deploy, on 6,150 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 | 6,150 |
| golang-1.19deb | 1.19.8-2 | no fix listed | 1 |
- OSV records
- DEBIAN-CVE-2026-56866GO-2026-6605
- Trending
- Rank 10 in indexed charts, since 9 Oct 2026. See the ranking →
Charts affected
5,323 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| xteveluiscajl | 0.1.6 | 1 of 1See more | 5,501 |
| lumenvox-external-serviceslumenvox | 8.0.0 | 3 of 3See more | 9,016 |
| ratelimitlumiumcoVerified publisher | 0.0.4 | 1 of 2See more | 1,574 |
| lumovilumoviVerified publisher | 1.21.0 | 1 of 1See more | 553 |
| lynxpromptlynxpromptVerified publisher | 0.1.4 | 1 of 3See more | 851 |
| as212510-netm0nsterrr-as212510-netVerified publisher | 4.0.3 | 1 of 1See more | 148 |
| qbittorrentm0nsterrr-qbittorrentVerified publisher | 7.1.3 | 1 of 2See more | 723 |
| recyclarrm0nsterrr-recyclarrVerified publisher | 2.7.3 | 1 of 1See more | 205 |
| argusm0sh1-helm-charts | 0.5.0 | 1 of 1See more | 1,800 |
| gitea-runnerm0sh1-helm-charts | 0.2.3 | 2 of 2See more | 5,272 |
| wudm0sh1-helm-charts | 0.2.0 | 1 of 1See more | 8,091 |
| whoamim11sVerified publisher | 0.3.0 | 1 of 1See more | 357 |
| kube-benchm9sweeperVerified publisher | 1.6.0 | 1 of 1See more | 1,984 |
| m9sweeperm9sweeperVerified publisher | 1.6.0 | 2 of 6See more | 12,063 |
| magistralamagistrala-devopsVerified publisher | 0.16.2 | 17 of 42See more | 34,769 |
| docker-mailservermailserverVerified publisher | 0.2.65 | 4 of 9See more | 14,458 |
| demoshopmakaira | 2.4.0 | 1 of 4See more | 4,668 |
| mangadev-hello-worldmangadev | 0.3.0 | 1 of 1See more | 1,295 |
| novosgamarcusrepo | 0.1.1 | 2 of 2See more | 5,120 |
| whoamimario-fVerified publisher | 1.0.1 | 1 of 1See more | 2,369 |
| consumermarthydavidVerified publisher | 0.1.6 | 1 of 1See more | 1,245 |
| producermarthydavidVerified publisher | 0.1.6 | 1 of 1See more | 1,245 |
| ejabberdmartialblog | 0.3.1 | 1 of 1See more | 161 |
| circleci-runnermatic-insurance | 0.1.1 | 1 of 1See more | 4,912 |
| kruisematrixone-operatorVerified publisher | 1.8.3 | 2 of 2See more | 3,163 |
| matrix-sliding-syncmatrix-sliding-sync | 0.2.3 | 1 of 1See more | 2,283 |
| focalboardmattermostVerified publisher | 0.5.0 | 1 of 1See more | 5,584 |
| mattermostmattermostVerified publisher | 2.8.1 | 1 of 1See more | 677 |
| mattermost-calls-offloadermattermostVerified publisher | 0.2.1 | 1 of 1See more | 1,985 |
| mattermost-chaos-enginemattermostVerified publisher | 0.2.0 | 1 of 1See more | 5,569 |
| mattermost-push-proxymattermostVerified publisher | 0.14.3 | 1 of 1See more | 1,460 |
| mattermost-team-editionmattermost-team-edition | 6.6.83 | 1 of 4See more | 5,216 |
| mauticmautic-chartVerified publisher | 1.0.2 | 1 of 3See more | 10,007 |
| mayastormayastorVerified publisher | 2.12.2 | 16 of 31See more | 31,173 |
| eoloplantmca-eoloplaner | 0.1.0 | 2 of 7See more | 34,641 |
| claude-code-apimcp-helmVerified publisher | 0.1.1 | 1 of 1See more | 4,902 |
| mcp-kubernetesmcp-helmVerified publisher | 0.2.7 | 1 of 1See more | 6,746 |
| mdai-event-hubmdai-event-hubVerified publisher | 0.1.11 | 1 of 1See more | 762 |
| mdai-gatewaymdai-gatewayVerified publisher | 0.1.10 | 1 of 1See more | 748 |
| mdai-hubmdai-hubVerified publisher | 0.10.1 | 12 of 14See more | 13,188 |
| mdai-s3-logs-readermdai-s3-logs-readerVerified publisher | 0.0.8 | 1 of 1See more | 853 |
| medewerkercatalogusmedewerkercatalogus | 1.0.0 | 1 of 3See more | 9,339 |
| pod-cleanupmediamarktsaturn | 1.2.1 | 1 of 1See more | 910 |
| cleanuparrmedia-servarrVerified publisher | 0.20.1 | 1 of 1See more | 2,037 |
| sabnzbdmedia-servarrVerified publisher | 1.7.0 | 1 of 3See more | 1,081 |
| tinymediamanagermedia-servarrVerified publisher | 1.7.1 | 1 of 2See more | 10,522 |
| cameramedia-streaming-meshVerified publisher | 0.2.5 | 1 of 3See more | 20,721 |
| crdsmedia-streaming-meshVerified publisher | 0.0.1 | 1 of 2See more | 4,685 |
| ingressmedia-streaming-meshVerified publisher | 0.1.8 | 2 of 2See more | 4,866 |
| msmmedia-streaming-meshVerified publisher | 0.1.17 | 5 of 6See more | 15,458 |
Container images carrying it
6,150 by charts deploying them
A fixed version is listed for 1 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| library/ | 2d1e636f0778 | stdlib | 1.26.9 | 1 |
| library/ | 2f439458ab6a | stdlib | 1.26.9 | 1 |
| library/ | 304ab8135187 | stdlib | 1.26.9 | 1 |
| library/ | 3a82e1f56c8f | stdlib | 1.26.9 | 1 |
| library/ | 3e7dd0bfd7bf | stdlib | 1.26.9 | 1 |
| library/ | 42df6755a411 | stdlib | 1.26.9 | 1 |
| library/ | 44d837eb4c2e | stdlib | 1.26.9 | 1 |
| library/ | 468e1f126ca5 | stdlib | 1.26.9 | 1 |
| library/ | 539ceaaae49b | stdlib | 1.26.9 | 1 |
| library/ | 557fea37a744 | stdlib | 1.26.9 | 1 |
| library/ | 5c265bf1fd30 | stdlib | 1.26.9 | 1 |
| library/ | 6567bca8d7bc | stdlib | 1.26.9 | 1 |
| library/ | 69e8582b781c | stdlib | 1.26.9 | 1 |
| library/ | 6eb0add3b77c | stdlib | 1.26.9 | 1 |
| library/ | 7062a2109c4b | stdlib | 1.26.9 | 1 |
| library/ | 7c8f48705831 | stdlib | 1.26.9 | 1 |
| library/ | 7e2070cf6ad0 | stdlib | 1.26.9 | 1 |
| library/ | 7e5df973a748 | stdlib | 1.26.9 | 1 |
| library/ | 8775adb39f0d | stdlib | 1.26.9 | 1 |
| library/ | 885cf05d376c | stdlib | 1.26.9 | 1 |
| library/ | 8ff36f3c6637 | stdlib | 1.26.9 | 1 |
| library/ | a9abf4275f9e | stdlib | 1.26.9 | 1 |
| library/ | bdc3027c1610 | stdlib | 1.26.9 | 1 |
| library/ | c67d80f67f76 | stdlib | 1.26.9 | 1 |
| library/ | c961aa287d86 | stdlib | 1.26.9 | 1 |
| library/ | ced3ba927f4c | stdlib | 1.26.9 | 1 |
| library/ | ceef4a62198b | stdlib | 1.26.9 | 1 |
| library/ | ebba4f4de37f | stdlib | 1.26.9 | 1 |
| library/ | ef257d85f76e | stdlib | 1.26.9 | 1 |
| library/ | f565573d74ae | stdlib | 1.26.9 | 1 |
| library/ | fbcea1bd13b6 | stdlib | 1.26.9 | 1 |
| library/ | 078107e03637 | stdlib | 1.26.9 | 1 |
| library/ | 19c5ee40801d | stdlib | 1.26.9 | 1 |
| library/ | 446551b26c0b | stdlib | 1.26.9 | 1 |
| library/ | 6ec83ef56205 | stdlib | 1.26.9 | 1 |
| library/ | 751bf4eeaa69 | stdlib | 1.26.9 | 1 |
| library/ | 091a7b5de688 | stdlib | 1.26.9 | 1 |
| library/ | 352c1fdadc91 | stdlib | 1.26.9 | 1 |
| library/ | 6a5130174e14 | stdlib | 1.26.9 | 1 |
| library/ | 6aaf3f5e6bc8 | stdlib | 1.26.9 | 1 |
| library/ | 77697a75da9f | stdlib | 1.26.9 | 1 |
| library/ | 83edc2b8e9ff | stdlib | 1.26.9 | 1 |
| library/ | 92b8b307ee28 | stdlib | 1.26.9 | 1 |
| library/ | bb142a9c18ac | stdlib | 1.26.9 | 1 |
| library/ | c1e88455c852 | stdlib | 1.26.9 | 1 |
| library/ | c9d92d840fd0 | stdlib | 1.26.9 | 1 |
| library/ | 04ac44a2595b | stdlib | 1.26.9 | 1 |
| library/ | ddf754342cfc | stdlib | 1.26.9 | 1 |
| library/ | 28e98eece020 | stdlib | 1.26.9 | 1 |
| library/ | 507a3eecf809 | stdlib | 1.26.9 | 1 |