CVEvulnerability
CVE-2025-47908
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-08-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
References
- https://github.com/rs/cors/issues/170 github.com
- https://github.com/rs/cors/pull/171 github.com
- https://pkg.go.dev/vuln/GO-2024-2883 pkg.go.dev