GHSA-xwgq-pcqx-hpmv is a medium-severity (CVSS 6.1) Open Redirect vulnerability in io.ktor:ktor-client-core. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-xwgq-pcqx-hpmv is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
URL Redirection to Untrusted Site (Open Redirect) in Ktor
Real-World Exposure
io.ktor:ktor-client-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
In Ktor through 1.2.6, the client resends data from the HTTP Authorization header to a redirect location.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | io.ktor:ktor-client-core | all versions | 1.3.0 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.ktor:ktor-client-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 io.ktor:ktor-client-core to 1.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xwgq-pcqx-hpmv 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-xwgq-pcqx-hpmv 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-xwgq-pcqx-hpmv. 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-xwgq-pcqx-hpmv in your dependencies?
O3 detects GHSA-xwgq-pcqx-hpmv across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.