CVE-2026-120651
perl-cgi: perl-cgi: Denial of Service via truncated request body
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 4, 2026
Updated · November 4, 2026
Description
A flaw was found in perl-cgi. A remote attacker can trigger a denial of service (DoS) by sending an HTTP request containing a body shorter than its declared Content-Length header. When file upload processing is disabled, the server enters an infinite loop attempting to discard remaining data, consuming excessive CPU resources and rendering the affected server process unresponsive.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-835 · Loop with Unreachable Exit Condition