NULL Pointer Dereference Affecting conmon package, versions <3:2.1.10-1.module+el8.10.0+24510+6ea3880e


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Social Trends
EPSS
0.39% (32nd 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-CENTOS8-CONMON-17958730
  • published13 Jul 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-39835  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:8 conmon to version 3:2.1.10-1.module+el8.10.0+24510+6ea3880e or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream conmon package and not the conmon package as distributed by Centos. See How to fix? for Centos:8 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.

CVSS Base Scores

version 3.1