CVEvulnerability
CVE-2021-4138
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-05-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Description
Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.
Affected configurations
• mozilla geckodriver (< 0.30.0)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1652612 Issue Tracking, Permissions Required, Third Party Advisory
- https://github.com/mozilla/geckodriver/releases/tag/v0.30.0 Release Notes, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1652612 Issue Tracking, Permissions Required, Third Party Advisory
- https://github.com/mozilla/geckodriver/releases/tag/v0.30.0 Release Notes, Third Party Advisory