CVE-2026-84189
highLibreNMS through 26.4.0 renders JSON fields (name, ip, model, author, commit message) returned by the admin-configurable Oxidized integration URL (oxidized.url…
LibreNMS through 26.4.0 renders JSON fields (name, ip, model, author, commit message) returned by the admin-configurable Oxidized integration URL (oxidized.url) into the device showconfig page without applying htmlspecialchars(). An administrator who points the Oxidized URL at an attacker-controlled server (SSRF) can cause it to return malicious JSON, resulting in stored/persistent cross-site scripting affecting all users who view any device's showconfig tab. Fixed in 26.7.0.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/librenms/librenms/security/advisories/GHSA-7gww-x7fh-jf9j disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/librenms-before-26.7.0-stored-xss-via-oxidized-api disclosure@vulncheck.com
- https://github.com/librenms/librenms/security/advisories/GHSA-7gww-x7fh-jf9j 134c704f-9b21-4f2e-91b3-4a467353bcc0