CLEANSTART-2026-QY50458

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Import Source
https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-QY50458.json
JSON Data
https://api.osv.dev/v1/vulns/CLEANSTART-2026-QY50458
Upstream
  • CVE-2026-56853
Published
2026-09-24T06:49:34Z
Modified
2026-09-24T07:01:11Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 fluent-operator 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 / fluent-operator

Package

Name
fluent-operator

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.9.0-r3

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-QY50458.json"