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Maven
Not in CISA KEV
MEDIUM severity

CVE-2025-56769

MEDIUM

CVE-2025-56769 is a medium-severity (CVSS 6.5) CWE-77 vulnerability in cn.hutool:hutool-extra. O3 Security confirms whether CVE-2025-56769 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Hutool allows remote code execution (RCE) via the QLExpressEngine class

Also known asGHSA-gcfh-36x4-mgj6
Published
Sep 25, 2025
Updated
Jul 17, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 17, 2026 · OSV.dev, NVD, 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 5.8.4 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
EcosystemPackageVulnerable rangeFix
Mavencn.hutool:hutool-extraall versions5.8.40

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cn.hutool:hutool-extra. 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 cn.hutool:hutool-extra to 5.8.40 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-56769 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-2025-56769 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-2025-56769. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

An issue was discovered in chinabugotech hutool before 5.8.4 allowing attackers to execute arbitrary expressions that lead to arbitrary method invocation and potentially remote code execution (RCE) via the QLExpressEngine class.
O3 Security · Impact-Aware SCA

Is CVE-2025-56769 in your dependencies?

O3 detects CVE-2025-56769 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.