CVE-2026-28794
CVE-2026-28794 · oRPC: Prototype Pollution in `@orpc/client` via `StandardRPCJsonSerializer` Deserialization
This page contains facts from public vulnerability sources. Check the original advisory before updating.
oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to version 1.13.6, a prototype pollution vulnerability exists in the RPC JSON deserializer of the @orpc/client package. The vulnerability allows unauthenticated, remote attackers to inject arbitrary properties into the global Object.prototype. Because this pollution persists for the lifetime of the Node.js process and affects all objects, it can lead to severe security breaches, including authentication bypass, denial of service, and potentially Remote Code Execution. This issue has been patched in version 1.13.6.
CVSS 9.3 · Critical · EPSS 1.1% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
orpc
- Versions
- < 1.13.6: Affected
No fix published
@orpc/client npm
- Affected ranges
- SEMVER: < 1.13.6
Update to 1.13.6