CVE-2026-11752
CVE-2026-11752 is a security vulnerability in com.linecorp.armeria:armeria-xds. O3 Security confirms whether CVE-2026-11752 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Armeria: External Control of File Name or Path in xDS SDS DataSource
Blast Radius
com.linecorp.armeria:armeria-xdsReal-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
A vulnerability has been identified in armeria-xds versions 1.38.0 through 1.39.0, where DataSourceStream in the xDS module can resolve control-plane-supplied filenames and environment variables without restriction, allowing a compromised or semi-trusted xDS control plane to read arbitrary local files and environment variables on the xDS client host.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | com.linecorp.armeria:armeria-xds | all versions | 1.40.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.linecorp.armeria:armeria-xds. 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 com.linecorp.armeria:armeria-xds to 1.40.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-11752 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 CVE-2026-11752 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-2026-11752. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-11752 in your dependencies?
O3 detects CVE-2026-11752 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.