CVE Catalog

CVE-2026-59681

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
1.15%

65th percentile - higher than 65% of all known CVEs

Summary

An OS command injection vulnerability in yast2-auth-client allows an attacker who controls Active Directory configuration values to execute arbitrary commands as root on the configured host. Auth::AuthConf in src/lib/auth/authconf.rb assembles the Samba net ads join, net ads lookup -S and net ads testjoin invocations by interpolating configuration values into a single command string and passing that string to Open3.popen2 / Open3.capture2, which causes Ruby to run it through /bin/sh. The Organizational Unit (ou), dnshostname, AD user name and AD domain name values are neither validated nor shell-quoted.

Risk Assessment

The risk for the organization is the possibility of remote execution of arbitrary commands as root on the host, potentially leading to full system compromise and infrastructure security breach.

Recommendation

Immediately upgrade yast2-auth-client to a patched version and ensure all AD configuration values are validated and properly shell-quoted.

Related vulnerabilities

Original NVD description (English source)

A OS command injection vulnerability in yast2-auth-client allows an attacker who controls Active Directory configuration values to execute arbitrary commands as root on the configured host. Auth::AuthConf in src/lib/auth/authconf.rb assembles the Samba net ads join, net ads lookup -S and net ads testjoin invocations by interpolating configuration values into a single command string and passing that string to Open3.popen2 / Open3.capture2, which causes Ruby to run it through /bin/sh. The Organizational Unit (ou), dnshostname, AD user name and AD domain name values are neither validated nor shell-quoted.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS