CVE-2019-10665: Librenms/librenms LibreNMS Information Disclosure Vulnerability

CRITICAL
Advisory Identifier: GHSA-q5rg-wg7h-73m5
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CVSS 9.8
CWE-74
Published
Advisory Summary

CVE-2019-10665 is a CRITICAL (CVSS 9.8) librenms information disclosure vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) affecting Librenms/librenms libraries in the Packagist ecosystem. The issue involves librenms information disclosure. Remediation is available in the latest vendor maintenance releases.

CVE-2019-10665 at a Glance

CVE Identifier CVE-2019-10665
GHSA Identifier GHSA-q5rg-wg7h-73m5
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Product Librenms/librenms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2019-10665

To remediate this vulnerability, upgrade all affected Librenms/librenms dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

librenms/librenms fixed: Latest secure release 
Upgrade librenms/librenms to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for librenms/librenms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-10665, inspect your project dependencies for Librenms/librenms:

inspect dependencies for librenms/librenms

Analyze the terminal output to locate any version of Librenms/librenms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), where the product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. In Librenms/librenms, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An issue was discovered in LibreNMS through 1.47. The scripts that handle graphing options (`html/includes/graphs/common.inc.php` and `html/includes/graphs/graphs.inc.php`) do not sufficiently validate or encode several fields of user supplied input. Some parameters are filtered with `mysqli_real_escape_string`, which is only useful for preventing SQL injection attacks; other parameters are unfiltered. This allows an attacker to inject RRDtool syntax with newline characters via the `html/graph.php` script. RRDtool syntax is quite versatile and an attacker could leverage this to perform a number of attacks, including disclosing directory structure and filenames, file content, denial of service, or writing arbitrary files.

CVE-2019-10665 Affected Librenms/librenms Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
librenms/librenms
 Packagist
≤ 1.47

References

NVD — CVE-2019-10665 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10665
Librenms/librenms Source Repository REPOSITORY
https://github.com/librenms/librenms
www.darkmatter.ae/xen1thlabs/librenms... WEB
https://www.darkmatter.ae/xen1thlabs/librenms-rrdtool-injection-vulnerability-xl-19-023

Frequently Asked Questions

What is CVE-2019-10665?
CVE-2019-10665 is a security vulnerability in Librenms/librenms involving LibreNMS Information Disclosure under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').
Which Librenms/librenms versions are affected?
Affected versions include releases prior to current release patches across affected packages: librenms/librenms.
What version fixes CVE-2019-10665?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is librenms/librenms affected?
Yes, librenms/librenms is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2019-10665?
CVE-2019-10665 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-10665?
CVE-2019-10665 is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.).
How can I check Packagist dependencies for CVE-2019-10665?
Run the dependency tree command: 'inspect dependencies for librenms/librenms'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q5rg-wg7h-73m5",
  "modified" : "2026-03-06T15:10:27Z",
  "published" : "2022-05-24T16:55:40Z",
  "aliases" : [ "CVE-2019-10665" ],
  "summary" : "LibreNMS Information Disclosure",
  "details" : "An issue was discovered in LibreNMS through 1.47. The scripts that handle graphing options (`html/includes/graphs/common.inc.php` and `html/includes/graphs/graphs.inc.php`) do not sufficiently validate or encode several fields of user supplied input. Some parameters are filtered with `mysqli_real_escape_string`, which is only useful for preventing SQL injection attacks; other parameters are unfiltered. This allows an attacker to inject RRDtool syntax with newline characters via the `html/graph.php` script. RRDtool syntax is quite versatile and an attacker could leverage this to perform a number of attacks, including disclosing directory structure and filenames, file content, denial of service, or writing arbitrary files.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "librenms/librenms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.47"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10665"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/librenms/librenms"
  }, {
    "type" : "WEB",
    "url" : "https://www.darkmatter.ae/xen1thlabs/librenms-rrdtool-injection-vulnerability-xl-19-023"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-17T23:09:56Z",
    "nvd_published_at" : "2019-09-09T13:15:00Z"
  }
}