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 |
|---|---|---|---|---|
| cometbft/ | 22c2ac018f40 | stdlib | 1.26.9 | 1 |
| concourse/ | c9d48dfbf4f9 | stdlib | 1.26.9 | 1 |
| conduction/ | 9cfeeb6c7c20 | stdlib | 1.26.9 | 1 |
| conduction/ | c36094a41369 | stdlib | 1.26.9 | 1 |
| conduction/ | ece1ab544c57 | stdlib | 1.26.9 | 1 |
| conduction/ | 25415534d245 | stdlib | 1.26.9 | 1 |
| conduction/ | 3423845692c1 | stdlib | 1.26.9 | 1 |
| conduction/ | 2744565516e8 | stdlib | 1.26.9 | 1 |
| conduction/ | e1d4ad1e22a8 | stdlib | 1.26.9 | 1 |
| conduction/ | b6f95c8ead7d | stdlib | 1.26.9 | 1 |
| conduction/ | 8f177f9f8a7b | stdlib | 1.26.9 | 1 |
| conduction/ | 24f03c57568f | stdlib | 1.26.9 | 1 |
| confluentinc/ | 5e8f3ab5b497 | stdlib | 1.26.9 | 1 |
| confluentinc/ | 482d3048b3f6 | stdlib | 1.26.9 | 1 |
| consensys/ | 0a64d3b00613 | stdlib | 1.26.9 | 1 |
| containous/ | 587162516502 | stdlib | 1.26.9 | 1 |
| contentsquareplatform/ | 24555f22d4be | stdlib | 1.26.9 | 1 |
| coordimap/ | 7748fd0fae9f | stdlib | 1.26.9 | 1 |
| coredns/ | 40384aa1f5ea | stdlib | 1.26.9 | 1 |
| coredns/ | 73ca82b4ce82 | stdlib | 1.26.9 | 1 |
| coredns/ | 7efd3c635b03 | stdlib | 1.26.9 | 1 |
| coredns/ | 9caabbf6238b | stdlib | 1.26.9 | 1 |
| coredns/ | a0ead06651cf | stdlib | 1.26.9 | 1 |
| cortezaproject/ | 0bcdcbcd3c63 | stdlib | 1.26.9 | 1 |
| cortezaproject/ | 8eb7a26605c9 | stdlib | 1.26.9 | 1 |
| cortezaproject/ | cb9f200de5d2 | stdlib | 1.26.9 | 1 |
| cortezaproject/ | 4ea78dfe5364 | stdlib | 1.26.9 | 1 |
| couchbase/ | bf2d2e87e45f | stdlib | 1.26.9 | 1 |
| couchbase/ | 69a385b49e1f | stdlib | 1.26.9 | 1 |
| countly/ | f4cc7447c4f5 | stdlib | 1.26.9 | 1 |
| countly/ | e3c238248f99 | stdlib | 1.26.9 | 1 |
| countly/ | 2acbc11499b6 | stdlib | 1.26.9 | 1 |
| craftypath/ | 402a0024c732 | stdlib | 1.26.9 | 1 |
| crocodilestick/ | c31a738b6d5e | stdlib | 1.26.9 | 1 |
| crossplane/ | 66666e6963af | stdlib | 1.26.9 | 1 |
| crossplane/ | 0112171c45e3 | stdlib | 1.26.9 | 1 |
| crossplane/ | 07b8b410dc76 | stdlib | 1.26.9 | 1 |
| crowdfox/ | 6fa7e8063d27 | stdlib | 1.26.9 | 1 |
| csepulvedab/ | 227a6f2b0ff8 | stdlib | 1.26.9 | 1 |
| ctolon17/ | 6023888bf007 | stdlib | 1.26.9 | 1 |
| ctrox/ | 3c72862bea3c | stdlib | 1.26.9 | 1 |
| cube8021/ | c5d1a1ec4c5e | stdlib | 1.26.9 | 1 |
| curtismager20/ | dbf757dad657 | stdlib | 1.26.9 | 1 |
| curtismager20/ | bf588de2c078 | stdlib | 1.26.9 | 1 |
| curtismager20/ | e407298e4756 | stdlib | 1.26.9 | 1 |
| cyberark/ | 737a967088d9 | stdlib | 1.26.9 | 1 |
| cybrarist/ | e9e2447ac666 | stdlib | 1.26.9 | 1 |
| cyverse/ | c5877ea80e0e | stdlib | 1.26.9 | 1 |
| czerwonk/ | 2a35a0584608 | stdlib | 1.26.9 | 1 |
| czerwonk/ | 94f51e1ef1e2 | stdlib | 1.26.9 | 1 |