vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-40438): Apache HTTP Server vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Sep 16, 2021 | Sep 28, 2021 | Apr 16, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Sep 16, 2021
Added
Sep 28, 2021
Modified
Apr 16, 2026
Description
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
Solutions
ubuntu-pro-upgrade-apache2ubuntu-pro-upgrade-apache2-binubuntu-upgrade-apache2ubuntu-upgrade-apache2-bin
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.