CVE-2022-38179 is a medium-severity (CVSS 4.7) CWE-184 vulnerability in io.ktor:ktor. A fix is available for io.ktor:ktor — see the affected versions and patch details below.
JetBrains Ktor before 2.1.0 was vulnerable to a Reflect File Download attack
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
io.ktor:ktorReal-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
JetBrains Ktor before 2.1.0 was vulnerable to the Reflect File Download attack
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | io.ktor:ktor | all versions | 2.1.0io.ktor:ktor:2.1.0 |
Affected Products
ktorjetbrainsDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.ktor:ktor, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update io.ktor:ktor to 2.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-38179 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.
Frequently Asked Questions
Is CVE-2022-38179 in your dependencies?
Find it across Maven, including transitive dependencies.