vulnerability
Amazon Linux AMI 2: CVE-2021-33193: Security patch for httpd (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:P/A:N) | Aug 16, 2021 | Oct 18, 2021 | May 20, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
Aug 16, 2021
Added
Oct 18, 2021
Modified
May 20, 2026
Description
A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
Solutions
amazon-linux-ami-2-upgrade-httpdamazon-linux-ami-2-upgrade-httpd-debuginfoamazon-linux-ami-2-upgrade-httpd-develamazon-linux-ami-2-upgrade-httpd-filesystemamazon-linux-ami-2-upgrade-httpd-manualamazon-linux-ami-2-upgrade-httpd-toolsamazon-linux-ami-2-upgrade-mod_ldapamazon-linux-ami-2-upgrade-mod_mdamazon-linux-ami-2-upgrade-mod_proxy_htmlamazon-linux-ami-2-upgrade-mod_sessionamazon-linux-ami-2-upgrade-mod_ssl
Rapid7 Labs
2026 Global Threat Landscape Report
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