GHSA-v457-wxvj-p9w9
HIGH@vitejs/plugin-rsc has a Denial of Service with React Server Components
Blast Radius
@vitejs/plugin-rscReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects npm packages — download data is not available via public APIs for these ecosystems.
Description
Impact
@vitejs/plugin-rsc vendors react-server-dom-webpack, which contained a vulnerability in versions prior to 19.2.4. See details in React repository's advisory https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg
Patches
Upgrade immediately to @vitejs/[email protected] or later.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @vitejs/plugin-rsc | all versions | 0.5.23 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @vitejs/plugin-rsc. 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 @vitejs/plugin-rsc to 0.5.23 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v457-wxvj-p9w9 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-v457-wxvj-p9w9 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-v457-wxvj-p9w9. 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-v457-wxvj-p9w9 in your dependencies?
O3 detects GHSA-v457-wxvj-p9w9 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.