GHSA-5mrf-j8v6-f45g
LOWGHSA-5mrf-j8v6-f45g is a low-severity (CVSS 3.7) CWE-521 vulnerability in librenms/librenms. O3 Security confirms whether GHSA-5mrf-j8v6-f45g is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
LibreNMS has Weak Password Policy
Blast Radius
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Description
Summary
A Weak Password Policy vulnerability was identified in the user management functionality of the LibreNMS application. This vulnerability allows administrators to create accounts with extremely weak and predictable passwords, such as 12345678. This exposes the platform to brute-force and credential stuffing attacks.
Details
Vulnerable Component: User creation / password definition
The application fails to enforce a strong password policy when creating new users. As a result, administrators can define trivial and well-known weak passwords, compromising the authentication security of the system.
PoC
-
Log in to the application using an Administrator account.
-
Navigate to the user management section:
-
Create a new user account using the password
12345678.
- The application accepts the weak password without restrictions and creates the account successfully.
Impact
Weak password policy vulnerabilities can have severe consequences, including:
-
Increased risk of brute-force and credential stuffing attacks
-
Unauthorized access to user or administrative accounts
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Privilege escalation through compromised credentials
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Degradation of the overall security posture of the platform
Mitigation
-
Enforce a strong password policy (e.g., minimum of 12 characters with uppercase, lowercase, digits, and special characters).
-
Block the use of commonly known weak passwords (e.g.,
12345678,password,admin,qwerty).
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | librenms/librenms | all versions | 25.11.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for librenms/librenms. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update librenms/librenms to 25.11.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5mrf-j8v6-f45g is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-5mrf-j8v6-f45g is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-5mrf-j8v6-f45g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-5mrf-j8v6-f45g in your dependencies?
O3 detects GHSA-5mrf-j8v6-f45g across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.