========================================================================
CVE-2026-120650                                      CPAN Security Group
========================================================================

        CVE ID:  CVE-2026-120650

  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 allow memory, CPU and disk exhaustion
via missing or unenforced request size, parameter and upload limits

Description
-----------
CGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion
via missing or unenforced request size, parameter and upload limits.

$CGI::POST_MAX defaults to no limit, and when set is not enforced for
chunked multipart bodies or for the boundary line of a multipart body
without a boundary= parameter. Bodies saved as PUTDATA, POSTDATA or
PATCHDATA uploads are read into memory in one go, and nothing limits
the number of parameters or uploads.

Problem types
-------------
- CWE-770 Allocation of Resources Without Limits or Throttling

Workarounds
-----------
For deployments that cannot upgrade, limit the request body size at the
web server and set $CGI::POST_MAX.

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/17b838dc14d2b82ae6c7e76f66ec2c3f3b08038b.patch
https://github.com/leejo/CGI.pm/commit/f3febefe63fe3881d8c3ae10fa83ca8ec950b959.patch
https://github.com/leejo/CGI.pm/commit/277baeb74fde7bce975a7bd0a1f98dcf1b9b2050.patch
https://github.com/leejo/CGI.pm/commit/8940a74e53a41563f72813b45f99cceaaa4c92e8.patch