CLEANSTART-2026-SB07883

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Import Source
https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-SB07883.json
JSON Data
https://api.osv.dev/v1/vulns/CLEANSTART-2026-SB07883
Upstream
  • CVE-2026-56853
Published
2026-10-30T07:13:16Z
Modified
2026-10-31T01:02:29Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface
Details

Security vulnerability affects the kubernetes package. When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface.

References

Affected packages

CleanStart / kubernetes

Package

Name
kubernetes
Purl
pkg:apk/cleanstart/kubernetes

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.36.3-r2

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-SB07883.json"