Vulnerability Description
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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Orpc | Orpc | < 1.13.6 |
Related Weaknesses (CWE)
References
- https://github.com/middleapi/orpc/commit/1dba06fc6f938c2486de303c2fa096bc1c8418bPatch
- https://github.com/middleapi/orpc/security/advisories/GHSA-m272-9rp6-32mcExploitVendor Advisory
FAQ
What is CVE-2026-28794?
CVE-2026-28794 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2026-28794?
CVE-2026-28794 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-28794?
Check the references section above for vendor advisories and patch information. Affected products include: Orpc Orpc.