GHSA-729q-fcgp-r5xh is a high-severity (CVSS 7.5) CWE-459 vulnerability in org.apache.struts:struts2-core. O3 Security confirms whether GHSA-729q-fcgp-r5xh is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Apache Struts Improper Control of Dynamically-Managed Code Resources vulnerability
Real-World Exposure
org.apache.struts:struts2-core☕org.apache.struts:struts2-core☕org.apache.struts:struts2-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
When a Multipart request is performed but some of the fields exceed the maxStringLength limit, the upload files will remain in struts.multipart.saveDir even if the request has been denied. Users are recommended to upgrade to versions Struts 2.5.32 or 6.1.2.2 or Struts 6.3.0.1 or greater, which fix this issue.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.struts:struts2-core | ≥ 6.2.0&&< 6.3.0.1 | 6.3.0.1 |
| ☕Maven | org.apache.struts:struts2-core | ≥ 6.0.0&&< 6.1.2.2 | 6.1.2.2 |
| ☕Maven | org.apache.struts:struts2-core | all versions | 2.5.32 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.struts:struts2-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 org.apache.struts:struts2-core to 6.3.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-729q-fcgp-r5xh 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-729q-fcgp-r5xh 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-729q-fcgp-r5xh. 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-729q-fcgp-r5xh in your dependencies?
O3 detects GHSA-729q-fcgp-r5xh across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.