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CVE-2026-120642                                      CPAN Security Group
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        CVE ID:  CVE-2026-120642

  Distribution:  CGI
      Versions:  before 5.00
      MetaCPAN:  https://metacpan.org/dist/CGI
      VCS Repo:  https://github.com/leejo/CGI.pm

CGI versions before 5.00 for Perl return request-derived values
untainted under taint mode

Description
-----------
CGI versions before 5.00 for Perl return request-derived values
untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name
values, Accept results, and the name lists from url_param and cookie
are returned without the taint flag, as is a cookie named expires from
4.67 on.

These values come from regex captures or hash keys, which Perl does not
taint, so they pass -T checks unvalidated.

Problem types
-------------
- CWE-1173 Improper Use of Validation Framework

Solutions
---------
Upgrade to CGI 5.00 or later.

References
----------
https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm
https://metacpan.org/release/LEEJO/CGI-5.00/changes
https://github.com/leejo/CGI.pm/commit/6ae50ce84073b8f68a6e3750479de70d5b8f2dcf.patch