Skip to content
Fencer Vulns
high 8.8

CVE-2026-59681 json

yast2-auth-client: OS command injection via unsanitized Organizational Unit / dnsHostName in AD join

published 2026-09-01 2 mo ago modified 2026-09-02 2 mo ago also EUVD-2026-69001

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

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.

Patch / fix

  • yast2-auth-client SLE Module for Basesystem 15 SP7 4.7.1-150700.3.9.1
  • yast2-auth-client SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 4.5.5-150500.3.9.1
  • yast2-auth-client SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +1 more 4.4.6-150400.3.19.1
  • yast2-auth-client SLES for SAP 15 SP6, SLES 15 SP6-LTSS 4.6.3-150600.3.12.1
  • yast2-auth-client SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 3.3.22-3.15.1

suse advisories SUSE-SU-2026:3914-1SUSE-SU-2026:3901-1SUSE-SU-2026:3895-1SUSE-SU-2026:3894-1SUSE-SU-2026:3893-1

  • yast2-auth-client openSUSE Tumbleweed 5.0.5-1.1

opensuse advisories openSUSE-SU-2026:11938-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • SUSE yast2-auth-client

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.