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 to cause a denial of service.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Golang-github-rs-cors | Ubuntu | plucky | * |