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CVE-2026-109353— LibreNMS before 26.9.0 SQL Injection via notification_id in notifications.inc.php

Quick assessment

Affected
librenms librenms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibreNMS 在 26.9.0 版本之前存在一个 SQL 注入漏洞，允许未授权用户在向 notifications.inc.php 提供数组类型的 notification_id 参数时注入 SQL 语句。攻击者可以执行跨表读取操作，获取用户密码的哈希值，并将结果持久化存储在 notifications_attribs 表中，随后通过该界面读取这些内容。

CVSS 7.1 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
librenms librenms < 26.9.0 affected
26.9.0 unaffected
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I. Basic Information for CVE-2026-109353

Vulnerability Information
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Vulnerability Title
LibreNMS before 26.9.0 SQL Injection via notification_id in notifications.inc.php
Source: CVE Program / CVE List V5
Vulnerability Description
LibreNMS before 26.9.0 contains an SQL injection vulnerability that allows unprivileged users to inject SQL by supplying an array-valued notification_id parameter to notifications.inc.php. Attackers can perform cross-table reads of users.password hashes, with results persisted in notifications_attribs and readable through the interface.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
librenms librenms 0 ~ 26.9.0 -

II. Public POCs for CVE-2026-109353

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III. Intelligence Information for CVE-2026-109353

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Patches & Fixes for CVE-2026-109353 (1)

Vendor Advisories for CVE-2026-109353 (1)

Same Patch Batch · librenms · 2026-10-12 · 6 CVEs total

CVE-2026-109357 8.1 HIGH LibreNMS before 26.9.0 LDAP Filter Injection Authentication Bypass via Authorization Heade
CVE-2026-109355 6.1 MEDIUM LibreNMS before 26.9.0 Stored XSS via Tools Oxidized Node List
CVE-2026-109352 6.1 MEDIUM LibreNMS before 26.9.0 Stored XSS via wireless sensor description
CVE-2026-109356 4.3 MEDIUM LibreNMS before 26.9.0 Missing Authorization in Port Purge via PortsController
CVE-2026-109354 4.3 MEDIUM LibreNMS before 26.9.0 Path Traversal via NFSen channel Parameter

IV. Related Vulnerabilities

Same product: librenms
Same vendor: librenms
Same weakness: CWE-89

V. Comments for CVE-2026-109353

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