NULL Pointer Dereference Affecting libkadm5 package, versions <0:1.21.3-10.el10_2


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.85% (58th 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-CENTOS10-LIBKADM5-16329186
  • published1 May 2026
  • disclosed28 Apr 2026

Introduced: 28 Apr 2026

CVE-2026-40355  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:10 libkadm5 to version 0:1.21.3-10.el10_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libkadm5 package and not the libkadm5 package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parse_nego_message.

CVSS Base Scores

version 3.1