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NVD description
oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to 1.14.8, the @orpc/server CORS plugin in packages/server/src/plugins/cors.ts copies a client's incoming Vary request header into the response instead of controlling Vary as a response-only header and using Origin for request-origin variation. In deployments behind a shared cache, CDN, or reverse proxy that keys responses using Vary, a client can inject arbitrary variation values, pollute cache keys, and cause inconsistent CORS enforcement for other clients. Default non-cached configurations have no established direct confidentiality, integrity, or availability impact. This issue is fixed in version 1.14.8.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
🟠 oRPC, Vary Header Injection in CORS Plugin, #CVE-2026-77360 (Medium) -DC-Sep2026-2425 https://dailycve.com/orpc-vary-header-injection-in-cors-plugin-cve-2026-77360-medium-dc-sep2026-2425/
Post summary
The tweet announces CVE-2026-77360, a medium-severity Vary Header Injection vulnerability in the oRPC CORS plugin, linking to a DailyCVE article for more details. No exploit, patch, or active exploitation is mentioned.