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
- 5,293
- of 18,131 indexed, latest versions
- Container images
- 6,123
- 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 5,293 of 18,131 indexed charts deploy, on 6,123 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| stdlibgolang | go1.13, go1.13.1, go1.13.3, go1.13.4+209 more | 1.26.9 | 6,123 |
| 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
5,293 by stars
| Chart | Latest | Affected images | Radar Score |
|---|
Container images carrying it
6,123 by charts deploying them
A fixed version is listed for 1 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| grafana/ | b1da1d23037e | stdlib | 1.26.9 | 1 |
| grafana/ | b3af8ead67d7 | stdlib | 1.26.9 | 1 |
| grafana/ | cd6e176883a9 | stdlib | 1.26.9 | 1 |
| grafana/ | efd47c67f9ba | stdlib | 1.26.9 | 1 |
| grafana/ | 1e9bfcff3867 | stdlib | 1.26.9 | 1 |
| grafana/ | 28d7c00588aa | stdlib | 1.26.9 | 1 |
| grafana/ | 39baf6d67f85 | stdlib | 1.26.9 | 1 |
| grafana/ | 4249db29b992 | stdlib | 1.26.9 | 1 |
| grafana/ | 49e03f80d361 | stdlib | 1.26.9 | 1 |
| grafana/ | 549a40203e97 | stdlib | 1.26.9 | 1 |
| grafana/ | ab2a2569307b | stdlib | 1.26.9 | 1 |
| grafana/ | fbb984bab741 | stdlib | 1.26.9 | 1 |
| grafana/ | 42f541f22063 | stdlib | 1.26.9 | 1 |
| grafana/ | 78d208116ec5 | stdlib | 1.26.9 | 1 |
| grafana/ | 736f7459913d | stdlib | 1.26.9 | 1 |
| grafana/ | 7476e456c738 | stdlib | 1.26.9 | 1 |
| grafana/ | 80c1a8eb24dd | stdlib | 1.26.9 | 1 |
| grafana/ | 85f55510e0d3 | stdlib | 1.26.9 | 1 |
| grafana/ | 92838f113ba5 | stdlib | 1.26.9 | 1 |
| grafana/ | 09d8c3ce4f3a | stdlib | 1.26.9 | 1 |
| grafana/ | 330f990cdad9 | stdlib | 1.26.9 | 1 |
| grafana/ | 072527b12cdf | stdlib | 1.26.9 | 1 |
| grafana/ | 5fd12edcc694 | stdlib | 1.26.9 | 1 |
| grafana/ | 63a2e57a5b14 | stdlib | 1.26.9 | 1 |
| grafana/ | 65bfae480b57 | stdlib | 1.26.9 | 1 |
| grafana/ | 8dcfdf466da0 | stdlib | 1.26.9 | 1 |
| grafana/ | c16c710f7333 | stdlib | 1.26.9 | 1 |
| grafana/ | d3de3da9431c | stdlib | 1.26.9 | 1 |
| grafana/ | 319bf32ae06b | stdlib | 1.26.9 | 1 |
| grafana/ | 86a9ee744848 | stdlib | 1.26.9 | 1 |
| grafana/ | cfd00e7f73c2 | stdlib | 1.26.9 | 1 |
| grafana/ | 32fe838b79dd | stdlib | 1.26.9 | 1 |
| grafana/ | 3409edfb45c7 | stdlib | 1.26.9 | 1 |
| grafana/ | c49161c368a5 | stdlib | 1.26.9 | 1 |
| grafana/ | d3c9093401ca | stdlib | 1.26.9 | 1 |
| grafana/ | d5f33ade9d66 | stdlib | 1.26.9 | 1 |
| grafana/ | 3076b8dcdfb3 | stdlib | 1.26.9 | 1 |
| graphiteapp/ | 04a0037cc2ae | stdlib | 1.26.9 | 1 |
| graphprotocol/ | b0436347fb24 | stdlib | 1.26.9 | 1 |
| graphprotocol/ | f4452cdedd68 | stdlib | 1.26.9 | 1 |
| graviteeio/ | 82548747c6c5 | stdlib | 1.26.9 | 1 |
| gremlin/ | 298100e062b8 | stdlib | 1.26.9 | 1 |
| gresearch/ | 6c43743e2b2d | stdlib | 1.26.9 | 1 |
| gresearch/ | 16d1228220fc | stdlib | 1.26.9 | 1 |
| groundnuty/ | 84edcf796267 | stdlib | 1.26.9 | 1 |
| groundnuty/ | a26d3d3f6e1c | stdlib | 1.26.9 | 1 |
| grpl/ | c00aafee6629 | stdlib | 1.26.9 | 1 |
| gutmensch/ | 566979793fc4 | stdlib | 1.26.9 | 1 |
| gvpaleevkz/ | 46eb128d6c61 | stdlib | 1.26.9 | 1 |
| hammerspaceinc/ | 395bee4504fc | stdlib | 1.26.9 | 1 |