medium5.3
CVE-2021-4138
Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.
Impact
Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Geckodriver | before 0.30.0 |