Detections
Analytics
SCA: security update for librenms/librenms (GHSA-c9fv-cgmm-2wg7)
high Tenable Cloud Security Plugin ID 446060
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- LibreNMS is a network monitoring system. In versions from 21.6.0 up to 26.5.0, the Signal alert transport
is vulnerable to command injection because the signal-cli path and the Recipient field of an alert
transport entry are insufficiently escaped before being passed to an exec call. An authenticated
administrator can craft a transport entry whose Recipient contains shell metacharacters and whose path
points to the bundled composer_wrapper.php script, which itself passes attacker-controlled input to
further unsafe exec calls. By chaining these calls, the administrator can execute arbitrary operating-
system commands on the LibreNMS host. This issue is fixed in version 26.5.0. (CVE-2026-55182)
Solution
Update the librenms/librenms library and its related packages to version 26.5.0 or later.See Also
Plugin Details
Severity: High
ID: 446060
Version: Revision 1.3
Type: Local
Family: SCA Checks
Published: 8/18/2026
Updated: 8/27/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: High
Score: 7.6
Percentile: 98.37
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2026-55182
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.6
Threat Score: 6.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 8/18/2026
Vulnerability Publication Date: 8/18/2026
Reference Information
CVE: CVE-2026-55182
cwe: CWE-77