GHSA-w94c-4vhp-22gx @vitejs/plugin-rsc has a Denial of Service Vulnerability in React Server Components
Attackers can cause denial of service in applications using @vitejs/plugin-rsc due to a vulnerability in the vendored React Server Components library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-w94c-4vhp-22gx?
GHSA-w94c-4vhp-22gx is a denial of service vulnerability in @vitejs/plugin-rsc, published on 11 May 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 19.2.6. See details in React repository's advisory https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh
Patches
Upgrade immediately to @vitejs/[email protected] or later.
Which versions are affected by GHSA-w94c-4vhp-22gx?
2 open source packages ship an affected version, including @vitejs/plugin-rsc.
| Package | Affected | Fixed in |
|---|---|---|
@vitejs/plugin-rsc npm | All versions | 0.5.26 |
@vitejs/plugin-rsc npm | All versions | 0.5.26 |
How do I fix GHSA-w94c-4vhp-22gx?
Upgrade @vitejs/plugin-rsc to 0.5.26 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-w94c-4vhp-22gx being exploited?
There is no known exploitation of GHSA-w94c-4vhp-22gx in the wild and no public exploit code.