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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/rs/cors(Go) | 1.9.0 | 1.11.0 | N/A |
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