CVE-2026-56853 Affecting kapp-controller-fips package, versions <0.60.4-r5


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.22% (13th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CHAINGUARDLATEST-KAPPCONTROLLERFIPS-18800467
  • published15 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

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

How to fix?

Upgrade Chainguard kapp-controller-fips to version 0.60.4-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kapp-controller-fips package and not the kapp-controller-fips package as distributed by Chainguard. See How to fix? for Chainguard 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