# CVE-2025-55182: A Meta React Server Components bug is being used in attacks

Status: Being used now (CISA KEV, added 2025-12-05)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Meta React Server Components (CVE-2025-55182) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2025-55182. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints. Please note CVE-2025-66478 has been rejected, but it is associated with CVE-2025- 55182.

## Sources
- https://github.com/vercel-labs/fix-react2shell-next?tab=readme-ov-file
- https://nvd.nist.gov/vuln/detail/CVE-2025-55182
- https://nvd.nist.gov/vuln/detail/CVE-2025-55182

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.