CVE-2026-108715: medium-severity vulnerability in librenms
LibreNMS through 26.9.1.1 Authorization Bypass via Smokeping Graph auth.inc.php
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
LibreNMS through 26.9.1.1 contains an authorization bypass vulnerability in includes/html/graphs/smokeping/auth.inc.php that checks the src probe device instead of the rendered target device. Restricted users permitted on a probe device can request smokeping_in or smokeping_out graphs with arbitrary device ids to view latency data and enumerate device names.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
librenms · librenmsRelated CVEs — librenms
In the same product, most dangerous first.
CVE-2024-49754HIGHLibreNMS has a stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/api-access.inc.phpEPSS 73.9%CVE-2024-50352MEDIUMLibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/device/overview/services.inc.phpEPSS 41.4%CVE-2024-32479HIGHLibreNMS's Improper Sanitization on Service template name leads to Stored XSSEPSS 34.1%CVE-2025-23200MEDIUMStored XSS-LibreNMS-Misc Section in librenmsEPSS 31.6%CVE-2024-47525HIGHStored XSS ('Cross-site Scripting') in librenms/includes/html/print-alert-rules.phpEPSS 29.6%CVE-2024-32480HIGHLibreNMS's Time-Based Blind SQL injection leads to database extractionEPSS 20.3%
References
https://github.com/librenms/librenmshttps://github.com/librenms/librenms/blob/26.9.1.1/includes/html/graphs/smokeping/auth.inc.php#L3-L7https://github.com/librenms/librenms/blob/26.9.1.1/LibreNMS/Util/Graph.php#L190-L198https://hackmd.io/@haind/librenms-smokeping-graph-src-device-auth-confusionhttps://www.vulncheck.com/advisories/librenms-through-26.9.1.1-authorization-bypass-via-smokeping-graph-auth-inc-php