CVE-2026-56853 Affecting grafana-selinux package, versions <0:9.2.10-33.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.57% (45th percentile)

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  • Snyk IDSNYK-ALMALINUX8-GRAFANASELINUX-19511416
  • published3 Sept 2026
  • disclosed2 Sept 2026

Introduced: 2 Sep 2026

NewCVE-2026-56853  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 grafana-selinux to version 0:9.2.10-33.el8_10 or higher.
This issue was patched in ALSA-2026:62407.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana-selinux package and not the grafana-selinux package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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. ReadHeaderTimeout is unexpectedly not being applied when doing this.

CVSS Base Scores

version 3.1