GHSA-7mcw-xmx3-7p8m is a high-severity (CVSS 7.1) CWE-732 vulnerability in cn.hutool:hutool-core. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-7mcw-xmx3-7p8m is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Insecure Temporary File in HuTool
Real-World Exposure
cn.hutool:hutool-coreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Hutool v5.8.17 and below was discovered to contain an information disclosure vulnerability via the File.createTempFile() function at /core/io/FileUtil.java.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | cn.hutool:hutool-core | all versions | 5.8.19 |
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 dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cn.hutool:hutool-core. 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 cn.hutool:hutool-core to 5.8.19 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7mcw-xmx3-7p8m 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-7mcw-xmx3-7p8m 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-7mcw-xmx3-7p8m. 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-7mcw-xmx3-7p8m in your dependencies?
O3 detects GHSA-7mcw-xmx3-7p8m across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.