GHSA-v457-wxvj-p9w9 @vitejs/plugin-rsc has a Denial of Service with React Server Components
A denial of service vulnerability in the vendored React Server Components library allows attackers to disrupt services using the Vite RSC plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-v457-wxvj-p9w9?
GHSA-v457-wxvj-p9w9 is a denial of service vulnerability in @vitejs/plugin-rsc, published on 10 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by GHSA-v457-wxvj-p9w9?
2 open source packages ship an affected version, including @vitejs/plugin-rsc.
| Package | Affected | Fixed in |
|---|---|---|
@vitejs/plugin-rsc npm | All versions | 0.5.23 |
@vitejs/plugin-rsc npm | All versions | 0.5.23 |
How do I fix GHSA-v457-wxvj-p9w9?
Upgrade @vitejs/plugin-rsc to 0.5.23 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GHSA-v457-wxvj-p9w9 being exploited?
There is no known exploitation of GHSA-v457-wxvj-p9w9 in the wild and no public exploit code.