CVE-2026-56866
MediumAdvisory
Published 8 Oct 2026In the index since 9 Oct 2026
- Severity
- Medium
- worst across findings
- CVSS
- 5.5
- base score, highest
- EPSS
- 0.002
- 5th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 5,544
- of 18,087 indexed, latest versions
- Container images
- 6,392
- deployed by those charts
- Fix available
- 1 of 3
- affected packages
HTTP/1 client connection desynchronization after CONNECT rejection in net/http
Carried by container images the latest versions of 5,544 of 18,087 indexed charts deploy, on 6,392 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 | 6,392 |
| golang-1.19deb | 1.19.8-2 | no fix listed | 1 |
| ingress-nginx-controller-1.15apk | 1.15.10-r3 | no fix listed | 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 13 in indexed charts, since 9 Oct 2026. See the ranking →
Charts affected
5,544 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| hcloud-csihcloud | 2.23.0 | 6 of 6See more | 4,530 |
| docmosthelmforgeVerified publisher | 1.4.1 | 1 of 4See more | 4,619 |
| wordpresshelmforgeVerified publisher | 3.0.9 | 1 of 3See more | 4,484 |
| korkorVerified publisher | 0.2.16 | 1 of 1See more | 512 |
| kubelet-csr-approverkubelet-csr-approverOfficialVerified publisher | 1.2.15 | 1 of 1See more | 232 |
| logging-operatorkube-loggingVerified publisher | 4.2.3 | 1 of 1See more | 1,496 |
| myipkuossOfficialVerified publisher | 0.2.2 | 1 of 1See more | 1,088 |
| keptnlifecycle-toolkitOfficialVerified publisher | 0.11.0 | 3 of 3See more | 3,327 |
| lightrun-helm-chartlightrun-helm-chartOfficialVerified publisher | 3.53.0 | 1 of 9See more | 828 |
| mattermost-operatormattermostVerified publisher | 1.0.5 | 1 of 1See more | 590 |
| mercuremercureOfficialVerified publisher | 1.1.0 | 1 of 1See more | 141 |
| meshery-operatormesheryOfficialVerified publisher | 1.0.70 | 2 of 2See more | 3,403 |
| missing-container-metricsmissing-container-metrics | 0.1.1 | 1 of 1See more | 3,568 |
| tailscale-relaymvisonneau | 0.2.7 | 1 of 1See more | 1,855 |
| nginx-ingressnginx-ingress-chartVerified publisher | 0.0.0-edge | 1 of 1See more | 1,566 |
| system-upgrade-controllernimbolus | 0.7.0 | 1 of 1See more | 673 |
| olmolmVerified publisher | 0.46.0 | 1 of 1See more | 462 |
| opencostopencost-ociOfficialVerified publisher | 2.5.32 | 1 of 2See more | 401 |
| ketoory | 0.64.0 | 1 of 1See more | 1,391 |
| oathkeeperory | 0.64.0 | 1 of 1See more | 1,336 |
| passboltpassbolt | 2.2.0 | 3 of 6See more | 14,129 |
| redis-enterprise-operatorredis-enterprise-operator-officialOfficialVerified publisher | 8.0.18-11 | 1 of 1See more | 1,326 |
| backstagerhdh-chartVerified publisher | 4.0.1 | 1 of 2See more | 1,987 |
| selenium-gridselenium-grid | 0.59.1 | 3 of 4See more | 9,270 |
| rekorsigstoreVerified publisher | 1.8.7 | 7 of 9See more | 7,889 |
| mssqlserver-2022simcube | 1.2.3 | 1 of 1See more | 3,301 |
| snyk-monitorsnyk | 2.23.26 | 1 of 2See more | 1,061 |
| swo-k8s-collectorsolarwindsOfficialVerified publisher | 5.3.0 | 3 of 3See more | 3,462 |
| sops-operatorsops-operatorVerified publisher | 0.10.1 | 2 of 2See more | 1,943 |
| thehivestrangebee-helmOfficialVerified publisher | 1.1.0 | 2 of 7See more | 16,869 |
| truenas-csptruenas-cspVerified publisher | 1.2.4 | 10 of 11See more | 9,075 |
| uffizzi-controlleruffizzi-controller | 2.4.6 | 8 of 11See more | 19,132 |
| filebrowserutkuozdemirVerified publisher | 1.0.0 | 1 of 1See more | 4,046 |
| vault-operatorvault-operatorVerified publisher | 1.24.1 | 1 of 1See more | 178 |
| vsphere-csivsphere-tmm | 3.8.1 | 7 of 7See more | 7,123 |
| wazuhwazuh-helmVerified publisher | 0.0.8 | 1 of 4See more | 8,020 |
| aad-pod-identityaad-pod-identity | 4.1.18 | 2 of 2See more | 4,251 |
| abcdesktopabcdesktopOfficialVerified publisher | 4.4.13 | 2 of 9See more | 1,185 |
| agonesagones | 1.61.0 | 1 of 5See more | 1,423 |
| photoprismandrenarchyVerified publisher | 8.15.0 | 1 of 1See more | 50,190 |
| kubedbappscodeVerified publisher | 2026.7.10 | 8 of 8See more | 6,811 |
| cloudflaredartur9010Verified publisher | 1.0.9 | 3 of 3See more | 4,168 |
| bambooatlassian-data-centerVerified publisher | 2.0.17 | 1 of 2See more | 36,178 |
| alb-controllerazure-application-gateway-for-containers | 1.12.2 | 3 of 3See more | 418 |
| baserowbaserow-chartVerified publisher | 1.1.0 | 4 of 6See more | 19,706 |
| mysql-operatorbitpokeVerified publisher | 0.6.3 | 2 of 2See more | 5,362 |
| celestia-appcelestia-labsVerified publisher | 0.5.0 | 1 of 3See more | 1,527 |
| cert-manager-webhook-hetznercert-manager-webhook-hetznerVerified publisher | 0.2.1 | 1 of 1See more | 4,145 |
| fadicetic | 0.3.1 | 2 of 25See more | 141,463 |
| kuttchristianhuthVerified publisher | 9.11.2 | 1 of 3See more | 783 |
Container images carrying it
6,392 by charts deploying them
A fixed version is listed for 1 of the 3 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| chirpstack/ | c98d7fe06bce | stdlib | 1.26.9 | 1 |
| chocobozzz/ | 052712130691 | stdlib | 1.26.9 | 1 |
| chriseaton/ | 54c3384ce701 | stdlib | 1.26.9 | 1 |
| chrislusf/ | 634b094b2183 | stdlib | 1.26.9 | 1 |
| chrislusf/ | 6620371e8af8 | stdlib | 1.26.9 | 1 |
| chrislusf/ | ed80f00fde46 | stdlib | 1.26.9 | 1 |
| chrislusf/ | 1fca534c9001 | stdlib | 1.26.9 | 1 |
| chrislusf/ | 7c6250e96001 | stdlib | 1.26.9 | 1 |
| chriswells0/ | f3918ec8471c | stdlib | 1.26.9 | 1 |
| circleci/ | 4d8d0ae5efc3 | stdlib | 1.26.9 | 1 |
| circleci/ | 9bdc62f02162 | stdlib | 1.26.9 | 1 |
| ciscolabs/ | 36d02faad958 | stdlib | 1.26.9 | 1 |
| ckan/ | ef8e5d3e6be1 | stdlib | 1.26.9 | 1 |
| clastix/ | 43d301afbca8 | stdlib | 1.26.9 | 1 |
| clastix/ | bb4bd5e1d9eb | stdlib | 1.26.9 | 1 |
| cleanstart/ | f1156f7fd14a | stdlib | 1.26.9 | 1 |
| clickhouse/ | 512bb8a21483 | stdlib | 1.26.9 | 1 |
| clickhouse/ | dc5658853ce1 | stdlib | 1.26.9 | 1 |
| cloud37io/ | 10e791e98b62 | stdlib | 1.26.9 | 1 |
| cloudbees/ | 1d44fb4f799b | stdlib | 1.26.9 | 1 |
| cloudbees/ | 8f102ef0383a | stdlib | 1.26.9 | 1 |
| cloudecho/ | f76ede067ab9 | stdlib | 1.26.9 | 1 |
| cloudentity/ | 9402ec4b5016 | stdlib | 1.26.9 | 1 |
| cloudentity/ | 8a1890eb8265 | stdlib | 1.26.9 | 1 |
| cloudentity/ | ee83cdd45b7b | stdlib | 1.26.9 | 1 |
| cloudentity/ | 5728654cecb7 | stdlib | 1.26.9 | 1 |
| cloudentity/ | 8ca94ae6acf4 | stdlib | 1.26.9 | 1 |
| cloudentity/ | c04eb10c77b7 | stdlib | 1.26.9 | 1 |
| cloudflare/ | 14d9c6b01b29 | stdlib | 1.26.9 | 1 |
| cloudflare/ | 5d5f70a59d5e | stdlib | 1.26.9 | 1 |
| cloudflare/ | 665dda65335e | stdlib | 1.26.9 | 1 |
| cloudflare/ | c18744ae1767 | stdlib | 1.26.9 | 1 |
| cloudflare/ | eb5c9324efe3 | stdlib | 1.26.9 | 1 |
| cloudflare/ | 9ee05675fa9c | stdlib | 1.26.9 | 1 |
| cloudnativelabs/ | 0ec7cd73f43f | stdlib | 1.26.9 | 1 |
| cloudposse/ | 0d9507e8a760 | stdlib | 1.26.9 | 1 |
| cloudreve/ | 09093aec5a20 | stdlib | 1.26.9 | 1 |
| cloudreve/ | f7a464100bf6 | stdlib | 1.26.9 | 1 |
| cloudtooling/ | d3e3607acf56 | stdlib | 1.26.9 | 1 |
| cloudtooling/ | fb4863035a05 | stdlib | 1.26.9 | 1 |
| cmacrae/ | fc5fecba436e | stdlib | 1.26.9 | 1 |
| cmacrae/ | dec8d490fe40 | stdlib | 1.26.9 | 1 |
| cockroachdb/ | 983312754620 | stdlib | 1.26.9 | 1 |
| codecov/ | de483faad6e5 | stdlib | 1.26.9 | 1 |
| codenotary/ | 7c85d7cc4f22 | stdlib | 1.26.9 | 1 |
| codercom/ | 1e2cc688008e | stdlib | 1.26.9 | 1 |
| codercom/ | 47605610ad8d | stdlib | 1.26.9 | 1 |
| coderenvs/ | 1deffc4670e6 | stdlib | 1.26.9 | 1 |
| codeskyblue/ | caa862590e34 | stdlib | 1.26.9 | 1 |
| codiacimages/ | d7d1e91eccde | stdlib | 1.26.9 | 1 |