| Name | CVE-2021-4138 |
| Description | Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 989456 |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| geckodriver | ITP | 989456 |