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

published May 2, 2022

CVSS
—
EPSS
1%
Percentile
57.7
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00847 · 57.7th percentile
Published
2022-05-02T22:08Z
EPSS history
Timeline
  • 02 MAY 22:08Z
    Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname
    cvelistv5