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 |
|---|---|---|---|
| alertmanager-botgeek-cookbookVerified publisher | 6.4.2 | 1 of 1See more | 4,811 |
| bazarrgeek-cookbookVerified publisher | 10.6.2 | 1 of 1See more | 19,154 |
| filebrowsergeek-cookbookVerified publisher | 1.4.2 | 1 of 1See more | 4,649 |
| focalboardgeek-cookbookVerified publisher | 4.4.2 | 1 of 1See more | 5,289 |
| gollumgeek-cookbookVerified publisher | 3.4.2 | 1 of 3See more | 5,444 |
| influxdb-exportergeek-cookbookVerified publisher | 1.2.2 | 1 of 1See more | 1,925 |
| network-ups-toolsgeek-cookbookVerified publisher | 6.4.2 | 1 of 1See more | 15,341 |
| otel-collectorgeek-cookbookVerified publisher | 1.2.2 | 1 of 1See more | 3,624 |
| owncastgeek-cookbookVerified publisher | 3.4.2 | 1 of 1See more | 4,382 |
| protonmail-bridgegeek-cookbookVerified publisher | 5.4.2 | 1 of 1See more | 9,504 |
| prowlarrgeek-cookbookVerified publisher | 4.5.2 | 1 of 1See more | 13,101 |
| sabnzbdgeek-cookbookVerified publisher | 9.4.2 | 1 of 1See more | 11,747 |
| sambageek-cookbookVerified publisher | 6.2.2 | 1 of 1See more | 3,271 |
| sonarrgeek-cookbookVerified publisher | 16.3.2 | 1 of 1See more | 14,427 |
| stashgeek-cookbookVerified publisher | 3.4.2 | 1 of 1See more | 17,824 |
| uptime-kumageek-cookbookVerified publisher | 1.4.2 | 1 of 1See more | 6,770 |
| valheimgeek-cookbookVerified publisher | 4.4.2 | 1 of 1See more | 2,959 |
| wireguardgeek-cookbookVerified publisher | 1.4.2 | 1 of 1See more | 8,990 |
| gentrace-self-hostedgentrace-self-hostedVerified publisher | 0.1.3 | 2 of 9See more | 16,950 |
| geo-checkergeo-checkerVerified publisher | 5.0.0 | 1 of 1See more | 1,960 |
| ghostfolioghostfolioVerified publisher | 0.5.4 | 1 of 3See more | 3,825 |
| gigapipegigapipeVerified publisher | 0.3.0 | 1 of 1See more | 1,089 |
| leantimegissilabs | 1.3.0 | 1 of 2See more | 7,635 |
| gitea-sonarqube-botgitea-sonarqube-botOfficialVerified publisher | 0.4.0 | 1 of 1See more | 1,684 |
| git-hubbygit-hubbyOfficialVerified publisher | 1.20.11 | 1 of 1See more | 254 |
| github-platform-operatorgithub-platform-operatorVerified publisher | 0.7.8 | 1 of 1See more | 260 |
| github-stsgithub-sts-helmVerified publisher | 0.1.1 | 1 of 1See more | 257 |
| gitops-reversergitops-reverserVerified publisher | 0.52.0 | 1 of 1See more | 205 |
| prometheus-kafka-exportergkarthiks | 0.1.3 | 1 of 1See more | 205 |
| temporalglasskubeVerified publisher | 0.45.2-gk.1 | 10 of 14See more | 23,259 |
| daos-operatorgluesysVerified publisher | 0.1.5 | 1 of 1See more | 208 |
| relay-proxygo-feature-flagOfficialVerified publisher | 1.56.0 | 1 of 1See more | 205 |
| go-hello-world-chartgo-hello-worldVerified publisher | 1.8.3 | 1 of 1See more | 1,238 |
| gomenhashaigomenhashaiOfficialVerified publisher | 1.3.4 | 1 of 1See more | 1,063 |
| gorse-enterprisegorse-io | 0.4.2 | 3 of 5See more | 6,804 |
| gotosocialgotosocialVerified publisher | 0.2.32 | 1 of 1See more | 656 |
| meta-monitoringgrafana | 1.3.0 | 2 of 2See more | 4,895 |
| phlaregrafana | 0.5.4 | 1 of 1See more | 2,887 |
| gkograviteeioVerified publisher | 4.12.21 | 1 of 1See more | 317 |
| greenkubegreenkubeVerified publisher | 0.3.0 | 1 of 3See more | 2,173 |
| gremlingremlin | 0.30.0 | 1 of 2See more | 368 |
| armada-operatorgresearch | 0.7.0 | 2 of 2See more | 2,777 |
| carettagroundcover | 0.0.16 | 3 of 3See more | 9,883 |
| ghostgroundhog2k | 0.212.16 | 1 of 1See more | 2,025 |
| growthbookgrowthbook | 5.1.0 | 1 of 2See more | 1,497 |
| IMgrycapOfficialVerified publisher | 1.8.0 | 1 of 3See more | 5,147 |
| oscargrycapOfficialVerified publisher | 4.2.0 | 1 of 2See more | 646 |
| castopodh2mVerified publisher | 1.12.10 | 1 of 3See more | 11,460 |
| haproxy-unified-gatewayhaproxytechVerified publisher | 1.2.0 | 1 of 1See more | 1,002 |
| boundary-controllerhashicorpVerified publisher | 0.2.0 | 1 of 1See more | 421 |
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 |
|---|---|---|---|---|
| flanksource/ | 1dacc3195bf9 | stdlib | 1.26.9 | 1 |
| flanksource/ | 764c84e550db | stdlib | 1.26.9 | 1 |
| flanksource/ | bd3294c20a60 | stdlib | 1.26.9 | 1 |
| flashbots/ | 7c486b5789da | stdlib | 1.26.9 | 1 |
| flashcatcloud/ | 421acb36181b | stdlib | 1.26.9 | 1 |
| flashcatcloud/ | ea1b0aaabe09 | stdlib | 1.26.9 | 1 |
| fleetdm/ | 12e644b7f40e | stdlib | 1.26.9 | 1 |
| flomesh/ | cc39c96711c4 | stdlib | 1.26.9 | 1 |
| flomesh/ | 22f849c70b25 | stdlib | 1.26.9 | 1 |
| flomesh/ | b188e128cbfe | stdlib | 1.26.9 | 1 |
| flomesh/ | add7a4da4622 | stdlib | 1.26.9 | 1 |
| flomesh/ | 47287e3ad324 | stdlib | 1.26.9 | 1 |
| flomesh/ | bd224d55ed0f | stdlib | 1.26.9 | 1 |
| fluxcd/ | 704d55295355 | stdlib | 1.26.9 | 1 |
| fluxcd/ | b1ac18156f22 | stdlib | 1.26.9 | 1 |
| fluxcd/ | 92b891e495d8 | stdlib | 1.26.9 | 1 |
| fluxcd/ | 31a8c79a6803 | stdlib | 1.26.9 | 1 |
| fluxninja/ | 356d7aa86632 | stdlib | 1.26.9 | 1 |
| fonoster/ | d08a8a574a50 | stdlib | 1.26.9 | 1 |
| foomo/ | 8da4b33610c6 | stdlib | 1.26.9 | 1 |
| foomo/ | e436da524785 | stdlib | 1.26.9 | 1 |
| forchaladtest/ | 70827eaecad1 | stdlib | 1.26.9 | 1 |
| fortio/ | fc8221136fe2 | stdlib | 1.26.9 | 1 |
| fosrl/ | ccd2b0e9a049 | stdlib | 1.26.9 | 1 |
| foxcpp/ | 6ab538e2f28b | stdlib | 1.26.9 | 1 |
| foxcpp/ | 8fa2bd8f6830 | stdlib | 1.26.9 | 1 |
| foxcpp/ | a4b839985b9b | stdlib | 1.26.9 | 1 |
| foxcpp/ | eeb5813fc4d1 | stdlib | 1.26.9 | 1 |
| freikin/ | e58334ca5697 | stdlib | 1.26.9 | 1 |
| frinx/ | 55575caebd01 | stdlib | 1.26.9 | 1 |
| gabekangas/ | 97461aedb580 | stdlib | 1.26.9 | 1 |
| galaxy/ | e5c265fe9fcd | stdlib | 1.26.9 | 1 |
| galaxy/ | e50a890e24c9 | stdlib | 1.26.9 | 1 |
| galexrt/ | 5373078a3a08 | stdlib | 1.26.9 | 1 |
| garugaru/ | 5201314c28f3 | stdlib | 1.26.9 | 1 |
| garugaru/ | 89d66d117029 | stdlib | 1.26.9 | 1 |
| gboxproxy/ | 3a9f4a711d5c | stdlib | 1.26.9 | 1 |
| gdxbsv/ | 675693335054 | stdlib | 1.26.9 | 1 |
| geldata/ | b3a2815a3956 | stdlib | 1.26.9 | 1 |
| geonetwork/ | 20c9bb761f67 | stdlib | 1.26.9 | 1 |
| geoservercloud/ | de0b20bd2a43 | stdlib | 1.26.9 | 1 |
| geoservercloud/ | b04ed89b5d2b | stdlib | 1.26.9 | 1 |
| geoservercloud/ | 318254b52f96 | stdlib | 1.26.9 | 1 |
| geoservercloud/ | 4f077124f591 | stdlib | 1.26.9 | 1 |
| geoservercloud/ | 4f91e3048ac8 | stdlib | 1.26.9 | 1 |
| geoservercloud/ | 299f0d6232d1 | stdlib | 1.26.9 | 1 |
| geoservercloud/ | 5164f687ce4d | stdlib | 1.26.9 | 1 |
| gesellix/ | 5b891f1fc2b9 | stdlib | 1.26.9 | 1 |
| gesellix/ | 6266d063f5d5 | stdlib | 1.26.9 | 1 |
| getconvoy/ | f4934cc05e31 | stdlib | 1.26.9 | 1 |