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 |
|---|---|---|---|---|
| opencord/ | 0d693ba85fd6 | stdlib | 1.26.9 | 1 |
| opencsghq/ | 41cba9c366f1 | stdlib | 1.26.9 | 1 |
| opencsghq/ | 7d0271e26521 | stdlib | 1.26.9 | 1 |
| opencsghq/ | d28266bae753 | stdlib | 1.26.9 | 1 |
| opencsghq/ | 20fbb6ea62a9 | stdlib | 1.26.9 | 1 |
| opencsghq/ | 86ea22f495c7 | stdlib | 1.26.9 | 1 |
| opencsghq/ | bdd2c58b9744 | stdlib | 1.26.9 | 1 |
| opencsghq/ | 80a65ac370da | stdlib | 1.26.9 | 1 |
| opencsghq/ | 5ea147562ec8 | stdlib | 1.26.9 | 1 |
| opencsghq/ | de15437db41b | stdlib | 1.26.9 | 1 |
| opencsghq/ | 47f08843cf13 | stdlib | 1.26.9 | 1 |
| opencsghq/ | 0aac0d04749e | stdlib | 1.26.9 | 1 |
| opencsghq/ | 44e6ec00729b | stdlib | 1.26.9 | 1 |
| opendatacube/ | 668cbb41473c | stdlib | 1.26.9 | 1 |
| openebs/ | 41f73aba7f31 | stdlib | 1.26.9 | 1 |
| openebs/ | 4f41dd782761 | stdlib | 1.26.9 | 1 |
| openebs/ | 0234692bb4a4 | stdlib | 1.26.9 | 1 |
| openenergyprojects/ | 58990f24fb25 | stdlib | 1.26.9 | 1 |
| openfga/ | 36097b960f66 | stdlib | 1.26.9 | 1 |
| openfga/ | 5e94966c11df | stdlib | 1.26.9 | 1 |
| openkruise/ | 2d5687595a31 | stdlib | 1.26.9 | 1 |
| openkruise/ | d3c6d69d2c39 | stdlib | 1.26.9 | 1 |
| openkruise/ | 0482722b4e56 | stdlib | 1.26.9 | 1 |
| openkruise/ | f81ae78a36a4 | stdlib | 1.26.9 | 1 |
| openkruise/ | a75e6739ea7d | stdlib | 1.26.9 | 1 |
| openkruise/ | a8108f771287 | stdlib | 1.26.9 | 1 |
| openkruise/ | bebea74bff03 | stdlib | 1.26.9 | 1 |
| openkruise/ | 1ab2dbfebc9d | stdlib | 1.26.9 | 1 |
| openmined/ | d11524a3854a | stdlib | 1.26.9 | 1 |
| openmined/ | 3a4144c0bb82 | stdlib | 1.26.9 | 1 |
| opennms/ | e1880996623f | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | b7b4d7cfdd52 | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | dfc6fc78753f | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | 77bc9bf3d163 | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | ab3620e6bec9 | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | 758ff3fb4727 | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | 6a58dea59933 | stdlib | 1.26.9 | 1 |
| openpolicyagent/ | 852359995443 | stdlib | 1.26.9 | 1 |
| openproject/ | 734743d11094 | stdlib | 1.26.9 | 1 |
| openruntimes/ | 2228f186dcbb | stdlib | 1.26.9 | 1 |
| opensearchproject/ | 43b0cdaf26ed | stdlib | 1.26.9 | 1 |
| opensearchproject/ | 99d4fb8144cd | stdlib | 1.26.9 | 1 |
| opentext/ | 4ad44e44476c | stdlib | 1.26.9 | 1 |
| openvino/ | 1e7cd1d70cc1 | stdlib | 1.26.9 | 1 |
| opsgenie/ | ecb246e4d260 | stdlib | 1.26.9 | 1 |
| optimizely/ | 9d0096cabd63 | stdlib | 1.26.9 | 1 |
| oranhack7/ | c6453942223f | stdlib | 1.26.9 | 1 |
| orbitalreg/ | 1a333a6b052c | stdlib | 1.26.9 | 1 |
| orbitalreg/ | 7f05b3fdd78c | stdlib | 1.26.9 | 1 |
| oryd/ | b94007e19a1f | stdlib | 1.26.9 | 1 |