CVE-2026-84194 (GCVE-0-2026-84194)
Vulnerability from cvelistv5
Published
2026-09-01 11:33
Modified
2026-09-04 01:52
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
LibreNMS versions >= 23.10.0 and < 26.2.0 (fixed in 26.4.0) contain an authenticated OS command injection vulnerability in libvirt discovery. When libvirt support is enabled (enable_libvirt=true), the device hostname ($this->getDevice()->hostname) is concatenated into shell commands (ssh, virsh list/dumpxml/domstate) in VminfoLibvirt.php and passed to exec() without escapeshellarg() or argument separation. An authenticated admin can set a crafted device hostname to inject arbitrary OS commands, leading to remote code execution in the discovery worker context.
Impacted products
Vendor Product Version
librenms librenms Version: 23.10.0   ≤
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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