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📦 npm

GHSA-v457-wxvj-p9w9

HIGH

@vitejs/plugin-rsc has a Denial of Service with React Server Components

Published
Apr 10, 2026
Updated
Apr 10, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
📦@vitejs/plugin-rsc

Real-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

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npm@vitejs/plugin-rscall versions0.5.23

Detection & mitigation playbook

Open-source dependency
  1. Detect

    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.

  2. 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.

  3. 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.

  4. 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

### 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.
O3 Security · Impact-Aware SCA

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.