vulnerability
Apache HTTPD: CVE-2016-8740: Improper Input Validation
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Dec 5, 2016 | Dec 5, 2016 | Apr 9, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Dec 5, 2016
Added
Dec 5, 2016
Modified
Apr 9, 2026
Description
The mod_http2 module in the Apache HTTP Server 2.4.17 through 2.4.23, when the Protocols configuration includes h2 or h2c, does not restrict request-header length, which allows remote attackers to cause a denial of service (memory consumption) via crafted CONTINUATION frames in an HTTP/2 request.
Solution
apache-httpd-upgrade-latest
References
Rapid7 Labs
2026 Global Threat Landscape Report
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