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I. Basic Information for CVE-2026-26988
Vulnerability Information

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Vulnerability Title
LibreNMS: SQL Injection in ajax_table.php spreads through a covert data stream
Source: NVD (National Vulnerability Database)
Vulnerability Description
LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below contain an SQL Injection vulnerability in the ajax_table.php endpoint. The application fails to properly sanitize or parameterize user input when processing IPv6 address searches. Specifically, the address parameter is split into an address and a prefix, and the prefix portion is directly concatenated into the SQL query string without validation. This allows an attacker to inject arbitrary SQL commands, potentially leading to unauthorized data access or database manipulation. This issue has been fixed in version 26.2.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
LibreNMS SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreNMS是LibreNMS社区的一套基于PHP和MySQL的开源网络监控系统。该系统具有自定义警报、自动发现网络环境和自动更新等特点。 LibreNMS 25.12.0及之前版本存在SQL注入漏洞,该漏洞源于ajax_table.php端点处理IPv6地址搜索时输入清理或参数化不当,可能导致SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
librenmslibrenms < 26.2.0 -
II. Public POCs for CVE-2026-26988
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/mbanyamer/CVE-2026-26988-LibreNMS-SQLiPOC Details
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III. Intelligence Information for CVE-2026-26988
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IV. Related Vulnerabilities
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