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CVE-2021-4138

nvd nist
Published: May 2, 2022Modified: Jun 17, 2026

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5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD

Description

Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.

Affected (1)

Products: Mozilla: Geckodriver
Mozilla
1 product
Geckodriver
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Geckodriver
Before 0.30.0

References (4)

Source: security@mozilla.org
Issue TrackingPermissions RequiredThird Party Advisory
Source: security@mozilla.org
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPermissions RequiredThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory

Timeline

No history available yet.