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 |
|---|---|---|---|---|
| nginx/ | 85666e7fde7e | stdlib | 1.26.9 | 1 |
| ngosang/ | a8f9cfa30162 | stdlib | 1.26.9 | 1 |
| ngrok/ | db8e6fecc52c | stdlib | 1.26.9 | 1 |
| nineinfra/ | debb1e3410e2 | stdlib | 1.26.9 | 1 |
| nineinfra/ | 8d8ed87ef77c | stdlib | 1.26.9 | 1 |
| nineinfra/ | 11259032fb04 | stdlib | 1.26.9 | 1 |
| nineinfra/ | d4aad414eccd | stdlib | 1.26.9 | 1 |
| nineinfra/ | af6eb2f37bfc | stdlib | 1.26.9 | 1 |
| nmalhotr/ | 3419361fb0dd | stdlib | 1.26.9 | 1 |
| nocodb/ | 6779a4ddedf2 | stdlib | 1.26.9 | 1 |
| nocodb/ | b0b91ec2a2dd | stdlib | 1.26.9 | 1 |
| nocodb/ | d9516f0bf546 | stdlib | 1.26.9 | 1 |
| nocodb/ | f9b799933aa8 | stdlib | 1.26.9 | 1 |
| noooste/ | a1444fa10585 | stdlib | 1.26.9 | 1 |
| nousresearch/ | e0df6adebddf | stdlib | 1.26.9 | 1 |
| novosga/ | 9957d44343db | stdlib | 1.26.9 | 1 |
| nsqio/ | 1a369c146af7 | stdlib | 1.26.9 | 1 |
| ntakashi/ | f7b68bee2a68 | stdlib | 1.26.9 | 1 |
| ntakashi/ | 4171ec641120 | stdlib | 1.26.9 | 1 |
| nvidia/ | 91b20b66d1cd | stdlib | 1.26.9 | 1 |
| oamdev/ | 5591e29d66a2 | stdlib | 1.26.9 | 1 |
| oamdev/ | dc97164c4c1f | stdlib | 1.26.9 | 1 |
| oamdev/ | 1bcae00bd7b0 | stdlib | 1.26.9 | 1 |
| oamdev/ | 31e0892f3583 | stdlib | 1.26.9 | 1 |
| oamdev/ | 70447f4d360a | stdlib | 1.26.9 | 1 |
| oamdev/ | 9dd8be44ffc9 | stdlib | 1.26.9 | 1 |
| oamdev/ | 95fa412c934e | stdlib | 1.26.9 | 1 |
| oamdev/ | 6db6a937647d | stdlib | 1.26.9 | 1 |
| obolnetwork/ | 87902178f0e7 | stdlib | 1.26.9 | 1 |
| odavid/ | e7ab3bbc948e | stdlib | 1.26.9 | 1 |
| ofekmeister/ | 30d70fa9211b | stdlib | 1.26.9 | 1 |
| offchainlabs/ | 9f779fa84b7b | stdlib | 1.26.9 | 1 |
| offchainlabs/ | e95865866129 | stdlib | 1.26.9 | 1 |
| okgolove/ | 974d2e5eb150 | stdlib | 1.26.9 | 1 |
| okteto/ | 57cd51176538 | stdlib | 1.26.9 | 1 |
| oliver006/ | 04d958d209ab | stdlib | 1.26.9 | 1 |
| oliver006/ | 120f7ec77293 | stdlib | 1.26.9 | 1 |
| oliver006/ | d55e056987af | stdlib | 1.26.9 | 1 |
| oliver006/ | d98e6db8094f | stdlib | 1.26.9 | 1 |
| oliver006/ | da9e89ee4e75 | stdlib | 1.26.9 | 1 |
| olliai/ | a470d96525e4 | stdlib | 1.26.9 | 1 |
| olliai/ | 5716f2a8bd4c | stdlib | 1.26.9 | 1 |
| ondrejsika/ | d95eaeee2172 | stdlib | 1.26.9 | 1 |
| oneuptime/ | 923154fcf6a9 | stdlib | 1.26.9 | 1 |
| onkar17/ | aef3ebd6e24e | stdlib | 1.26.9 | 1 |
| opea/ | 2bee4eb66f3e | stdlib | 1.26.9 | 1 |
| opea/ | 3ef121f34610 | stdlib | 1.26.9 | 1 |
| opea/ | 7f854e9bffaf | stdlib | 1.26.9 | 1 |
| opea/ | 514af17c495c | stdlib | 1.26.9 | 1 |
| opencloudeu/ | 6d992ccc5f1c | stdlib | 1.26.9 | 1 |