SQL Injection Vulnerability in LibreNMS Affects Versions Prior to 26.9.0
CVE-2026-109353

7.1HIGH

Key Information:

Vendor

Librenms

Status
Librenms
Vendor
CVE Published:
12 October 2026

What is CVE-2026-109353?

LibreNMS versions prior to 26.9.0 are susceptible to an SQL injection flaw that permits unprivileged users to execute arbitrary SQL commands by manipulating the notification_id parameter in notifications.inc.php. This vulnerability can lead to unauthorized access and cross-table reads of sensitive information, including user password hashes. The results, which can be further exploited, are retained in notifications_attribs and can be accessed via the application's interface, posing serious risks to user data security.

Affected Version(s)

librenms 0 < 26.9.0

librenms 26.9.0

References

https://github.com/librenms/librenms/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/librenms-before-26.9...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

jakobfir
.