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💎 RubyGems
Not in CISA KEV

CVE-2016-1000305

Fix: guard/guard-livereload#158

CVE-2016-1000305 is a security vulnerability in guard-livereload. O3 Security confirms whether CVE-2016-1000305 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

guard-livereload has a directory traversal vulnerability

Published
Jul 31, 2026
Updated
Jul 31, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 31, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
💎guard-livereload

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

The vulnerability allows remote attackers to read arbitrary files on the server by exploiting improper path validation in the livereload server functionality.

This vulnerability is related to the handling of file paths in the livereload server component, which could allow an attacker to traverse directories and access files outside the intended web root directory.

The issue was identified and reported through the DWF (Distributed Weakness Filing) project, which assigns CVE identifiers for security vulnerabilities.

A directory traversal vulnerability exists in guard-livereload before version 2.5.2.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsguard-livereloadall versions2.5.2

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for guard-livereload. 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.

  2. Fix

    Update guard-livereload to 2.5.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-1000305 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether CVE-2016-1000305 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 CVE-2016-1000305. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The vulnerability allows remote attackers to read arbitrary files on the server by exploiting improper path validation in the livereload server functionality. This vulnerability is related to the handling of file paths in the livereload server component, which could allow an attacker to traverse directories and access files outside the intended web root directory. The issue was identified and reported through the DWF (Distributed Weakness Filing) project, which assigns CVE identifiers for security vulnerabilities. A directory traversal vulnerability exists in guard-livereload before version
O3 Security · Impact-Aware SCA

Is CVE-2016-1000305 in your dependencies?

O3 detects CVE-2016-1000305 across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.