CVE-2026-120637

critical

Description

CGI versions before 5.00 for Perl take request parameters from the process command line arguments for an unrecognised REQUEST_METHOD. For a REQUEST_METHOD such as OPTIONS, CGI falls through to its offline debugging mode, which is on by default, and builds the parameters and path_info from the process's command line arguments.

References

https://metacpan.org/release/LEEJO/CGI-5.00/changes

https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm

https://github.com/leejo/CGI.pm/commit/b753ff75a3bc4554c075cc37c1db605a55297029.patch

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-116604

Details

Source: Mitre, NVD

Published: 2026-11-04

Updated: 2026-11-04

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00191