LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 24.10.0 through 26.1.1 are vulnerable to Stored XSS via the unit parameter in Custom OID. The Custom OID functionality lacks strip_tags() sanitization while other fields (name, oid, datatype) are sanitized. The unsanitized value is stored in the database and rendered without HTML escaping. This issue is fixed in version 26.2.0.
Metrics
Affected Vendors & Products
References
History
Fri, 20 Feb 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:* |
Fri, 20 Feb 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Fri, 20 Feb 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Librenms
Librenms librenms |
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| Vendors & Products |
Librenms
Librenms librenms |
Fri, 20 Feb 2026 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 24.10.0 through 26.1.1 are vulnerable to Stored XSS via the unit parameter in Custom OID. The Custom OID functionality lacks strip_tags() sanitization while other fields (name, oid, datatype) are sanitized. The unsanitized value is stored in the database and rendered without HTML escaping. This issue is fixed in version 26.2.0. | |
| Title | LibreNMS has Stored XSS in Custom OID - unit parameter missing strip_tags() | |
| Weaknesses | CWE-116 CWE-79 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-02-20T01:34:11.241Z
Updated: 2026-02-20T15:34:34.942Z
Reserved: 2026-02-17T03:08:23.490Z
Link: CVE-2026-27016
Updated: 2026-02-20T15:26:34.413Z
Status : Analyzed
Published: 2026-02-20T02:16:55.140
Modified: 2026-02-20T16:22:29.830
Link: CVE-2026-27016
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