Improper Certificate Validation Affecting k3s-1.36-static package, versions <1.36.4.1-r2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.5% (42nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-K3S136STATIC-19534977
  • published5 Sept 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-39835  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Minimos:latest k3s-1.36-static to version 1.36.4.1-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream k3s-1.36-static package and not the k3s-1.36-static package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

References

CVSS Base Scores

version 3.1