GHSA-VH9X-PHQ6-FX54 Duplicate Advisory: Denial of service via malicious preflight requests in github.com/rs/cors

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mh55-gqvf-xfwm. This link is maintained to preserve external references. Original Description Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include ...

CVE-2025-47908 Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

Go CORS handler security vulnerability

Go CORS handler is a configurable handler for handling CORS requests by the individual developer Olivier Poitrey. A security vulnerability exists in Go CORS handler that stems from a potential over-allocation of heap when handling malicious preflight requests, which could lead to a denial of...

Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...