GHSA-gcfh-36x4-mgj6 — hutool-extra
Fix: chinabugotech/hutool@3d0d8deGHSA-gcfh-36x4-mgj6 is a CWE-77 vulnerability in cn.hutool:hutool-extra. A fix is available for cn.hutool:hutool-extra — see the affected versions and patch details below.
Hutool allows remote code execution (RCE) via the QLExpressEngine class
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for GHSA-gcfh-36x4-mgj6.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
cn.hutool:hutool-extraReal-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
An issue was discovered in chinabugotech hutool before 5.8.40 allowing attackers to execute arbitrary expressions that lead to arbitrary method invocation and potentially remote code execution (RCE) via the QLExpressEngine class.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | cn.hutool:hutool-extra | all versions | 5.8.40cn.hutool:hutool-extra:5.8.40 |
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-extra, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cn.hutool:hutool-extra to 5.8.40 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gcfh-36x4-mgj6 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-gcfh-36x4-mgj6 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-gcfh-36x4-mgj6. 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-gcfh-36x4-mgj6 in your dependencies?
O3 Security finds GHSA-gcfh-36x4-mgj6 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.