Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
💎
💎 RubyGems
Not in CISA KEV
HIGH severity

GHSA-46f2-3v63-3xrp

HIGHFix: ruby/tmpdir#8

GHSA-46f2-3v63-3xrp is a high-severity (CVSS 7.5) Path Traversal vulnerability in tmpdir. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-46f2-3v63-3xrp is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Tempfile on Windows path traversal vulnerability

Also known asBIT-ruby-2021-28966BIT-ruby-min-2021-28966CVE-2021-28966
Published
May 6, 2021
Updated
Jan 27, 2025
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Jan 27, 2025 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
💎tmpdir

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

There is an unintentional directory creation vulnerability in tmpdir library bundled with Ruby on Windows. And there is also an unintentional file creation vulnerability in tempfile library bundled with Ruby on Windows, because it uses tmpdir internally.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemstmpdirall versions0.1.2
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tmpdir. 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 tmpdir to 0.1.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-46f2-3v63-3xrp 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 GHSA-46f2-3v63-3xrp 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-46f2-3v63-3xrp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

There is an unintentional directory creation vulnerability in `tmpdir` library bundled with Ruby on Windows. And there is also an unintentional file creation vulnerability in tempfile library bundled with Ruby on Windows, because it uses tmpdir internally.
O3 Security · Impact-Aware SCA

Is GHSA-46f2-3v63-3xrp in your dependencies?

O3 detects GHSA-46f2-3v63-3xrp across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.