GHSA-v457-wxvj-p9w9 — @vitejs/plugin-rsc
HIGHGHSA-v457-wxvj-p9w9 is a high-severity (CVSS 7.5) vulnerability in @vitejs/plugin-rsc. A fix is available for @vitejs/plugin-rsc — see the affected versions and patch details below.
@vitejs/plugin-rsc has a Denial of Service with React Server Components
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@vitejs/plugin-rscnpmDescription
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 | 0.5.23npm install @vitejs/plugin-rsc@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, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-v457-wxvj-p9w9 can be triaged on real exposure rather than presence alone.
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 Security finds GHSA-v457-wxvj-p9w9 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.