How severe is GHSA-gcfh-36x4-mgj6?

No CVSS score has been assigned to GHSA-gcfh-36x4-mgj6 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-gcfh-36x4-mgj6?

GHSA-gcfh-36x4-mgj6 affects the following packages: cn.hutool:hutool-extra (Maven). Ecosystems affected: Maven.

How do I fix GHSA-gcfh-36x4-mgj6?

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.

How do I detect GHSA-gcfh-36x4-mgj6 in my Maven dependencies?

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.

How do I mitigate GHSA-gcfh-36x4-mgj6 if there is no patch (or I can't update yet)?

Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Is GHSA-gcfh-36x4-mgj6 actively exploited in the wild?

No public exploit code has been indexed for GHSA-gcfh-36x4-mgj6 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-gcfh-36x4-mgj6?

GHSA-gcfh-36x4-mgj6 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 28th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-gcfh-36x4-mgj6?

GHSA-gcfh-36x4-mgj6 is classified as CWE-77 (CWE-77). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-gcfh-36x4-mgj6 published, and has it been updated?

GHSA-gcfh-36x4-mgj6 was published on September 26, 2025 and was last updated on September 26, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

Hutool allows remote code execution (RCE) via the QLExpressEngine classGHSA-gcfh-36x4-mgj6

Fix: chinabugotech/hutool@3d0d8de

GHSA-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.

Also known asCVE-2025-56769

Published

Sep 26, 2025

Updated

Sep 26, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs28th percentile — riskier than 28% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

☕cn.hutool:hutool-extra

Real-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

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`cn.hutool:hutool-extra`	all versions	5.8.40`cn.hutool:hutool-extra:5.8.40`

Affected Products

1 product · 1 configurations

Application

hutoolhutool

< 5.8.40

range

Detection & mitigation playbook

Open-source dependency

Detect
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
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is GHSA-gcfh-36x4-mgj6 in your dependencies?

Find it across Maven, including transitive dependencies.

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