CLEANSTART-2026-AF18240

See a problem?
Import Source
https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json
JSON Data
https://api.osv.dev/v1/vulns/CLEANSTART-2026-AF18240
Upstream
  • CVE-2026-56853
Published
2026-10-09T00:37:19Z
Modified
2026-10-09T01:00:06Z
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

CVE-2026-56853 affects multiple packages. 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. See references for individual vulnerability details.

References

Affected packages

CleanStart
aws-for-fluent-bit

Package

Name
aws-for-fluent-bit
Purl
pkg:apk/cleanstart/aws-for-fluent-bit

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.5.0-r1

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json"
buildkitd

Package

Name
buildkitd
Purl
pkg:apk/cleanstart/buildkitd

Affected ranges

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

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json"
loki

Package

Name
loki
Purl
pkg:apk/cleanstart/loki?arch=x86_64

Affected ranges

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

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json"
loki

Package

Name
loki
Purl
pkg:apk/cleanstart/loki?arch=aarch64

Affected ranges

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

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json"
loki

Package

Name
loki
Purl
pkg:apk/cleanstart/loki?arch=ppc64le

Affected ranges

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

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json"
loki

Package

Name
loki
Purl
pkg:apk/cleanstart/loki?arch=loongarch64

Affected ranges

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

Database specific

source
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-AF18240.json"