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
- 5,377
- of 18,104 indexed, latest versions
- Container images
- 6,223
- 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 5,377 of 18,104 indexed charts deploy, on 6,223 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 | 6,223 |
| golang-1.19deb | 1.19.8-2 | no fix listed | 1 |
- OSV records
- DEBIAN-CVE-2026-56866GO-2026-6605
- Trending
- Rank 8 in indexed charts, since 9 Oct 2026. See the ranking →
Charts affected
5,377 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| castopodhelmforgeVerified publisher | 1.2.10 | 2 of 3See more | 10,831 |
| certimatehelmforgeVerified publisher | 1.0.9 | 1 of 1See more | 258 |
| chiefonboardinghelmforgeVerified publisher | 1.1.15 | 1 of 3See more | 8,763 |
| ckanhelmforgeVerified publisher | 1.3.10 | 2 of 6See more | 11,614 |
| cloudflaredhelmforgeVerified publisher | 1.5.17 | 1 of 1See more | 624 |
| countlyhelmforgeVerified publisher | 1.2.8 | 2 of 3See more | 76,314 |
| dawarichhelmforgeVerified publisher | 1.0.3 | 2 of 4See more | 12,667 |
| ddns-updaterhelmforgeVerified publisher | 1.4.12 | 1 of 1See more | 574 |
| discount-bandithelmforgeVerified publisher | 2.0.9 | 2 of 3See more | 36,249 |
| druidhelmforgeVerified publisher | 1.3.6 | 2 of 4See more | 10,115 |
| drupalhelmforgeVerified publisher | 1.2.15 | 1 of 2See more | 4,535 |
| entehelmforgeVerified publisher | 1.0.2 | 2 of 4See more | 5,245 |
| ghosthelmforgeVerified publisher | 1.2.10 | 2 of 3See more | 3,916 |
| ghostfoliohelmforgeVerified publisher | 1.0.1 | 1 of 4See more | 5,154 |
| giteahelmforgeVerified publisher | 1.1.21 | 1 of 1See more | 905 |
| github-mcp-serverhelmforgeVerified publisher | 1.0.3 | 1 of 1See more | 744 |
| glancehelmforgeVerified publisher | 1.0.0 | 1 of 1See more | 376 |
| gophishhelmforgeVerified publisher | 0.1.6 | 1 of 1See more | 4,205 |
| hermes-agenthelmforgeVerified publisher | 1.0.1 | 1 of 1See more | 6,975 |
| hoppscotchhelmforgeVerified publisher | 1.1.12 | 2 of 2See more | 2,689 |
| immichhelmforgeVerified publisher | 1.2.10 | 1 of 5See more | 13,216 |
| jenkinshelmforgeVerified publisher | 1.0.9 | 1 of 1See more | 3,470 |
| komgahelmforgeVerified publisher | 1.4.16 | 1 of 1See more | 37,594 |
| kubernetes-mcp-serverhelmforgeVerified publisher | 1.0.7 | 1 of 1See more | 311 |
| listmonkhelmforgeVerified publisher | 1.1.14 | 3 of 3See more | 3,709 |
| medikeephelmforgeVerified publisher | 2.0.2 | 2 of 3See more | 6,699 |
| memoshelmforgeVerified publisher | 2.0.2 | 1 of 2See more | 509 |
| metabasehelmforgeVerified publisher | 1.2.30 | 1 of 3See more | 1,950 |
| metrics-serverhelmforgeVerified publisher | 1.0.4 | 1 of 1See more | 462 |
| middlewarehelmforgeVerified publisher | 1.2.8 | 2 of 4See more | 10,731 |
| minecrafthelmforgeVerified publisher | 1.5.5 | 1 of 1See more | 5,168 |
| mongodbhelmforgeVerified publisher | 1.8.2 | 1 of 1See more | 1,322 |
| moodlehelmforgeVerified publisher | 1.1.3 | 1 of 2See more | 7,283 |
| mysqlhelmforgeVerified publisher | 2.0.4 | 1 of 1See more | 797 |
| netboxhelmforgeVerified publisher | 2.0.3 | 2 of 4See more | 4,903 |
| nextcloudhelmforgeVerified publisher | 2.0.0 | 1 of 3See more | 7,685 |
| ntfyhelmforgeVerified publisher | 1.2.2 | 1 of 1See more | 401 |
| oauth2-proxyhelmforgeVerified publisher | 1.0.6 | 1 of 1See more | 272 |
| olivetinhelmforgeVerified publisher | 1.2.2 | 1 of 2See more | 731 |
| opencuthelmforgeVerified publisher | 1.1.11 | 1 of 5See more | 3,803 |
| paprahelmforgeVerified publisher | 1.0.0 | 1 of 1See more | 3,744 |
| pimcorehelmforgeVerified publisher | 2.0.4 | 2 of 6See more | 3,420 |
| pocket-idhelmforgeVerified publisher | 1.0.0 | 1 of 2See more | 705 |
| reactive-resumehelmforgeVerified publisher | 1.0.0 | 2 of 4See more | 3,937 |
| ryothelmforgeVerified publisher | 1.0.0 | 2 of 2See more | 7,302 |
| siyuanhelmforgeVerified publisher | 1.0.1 | 1 of 1See more | 400 |
| strapihelmforgeVerified publisher | 2.3.15 | 1 of 3See more | 3,009 |
| strava-statisticshelmforgeVerified publisher | 1.1.16 | 1 of 2See more | 1,221 |
| supersethelmforgeVerified publisher | 1.3.8 | 2 of 5See more | 6,455 |
| twentyhelmforgeVerified publisher | 1.0.4 | 1 of 5See more | 3,197 |
Container images carrying it
6,223 by charts deploying them
A fixed version is listed for 1 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| 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 |
| 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 |