CVE-2026-120641

CGI versions before 5.00 for Perl return upload filenames with any client-supplied path, including ../ and Windows paths

State: Published
Severity: Not scored
Published: Nov 3, 2026
Updated: Nov 3, 2026
Reserved: Nov 2, 2026

Read the record on cve.org

Description

CGI versions before 5.00 for Perl return upload filenames with any client-supplied path, including ../ and Windows paths.

The name returned for an uploaded file is the filename parameter of the part's Content-Disposition header, unchanged.

An application that saves the upload under this name can be made to write outside the intended directory.

Scores

The record has no CVSS score.

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
CGI	before 5.00Affected

References

https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pmtechnical-description
https://metacpan.org/release/LEEJO/CGI-5.00/changesrelease-notes
https://github.com/leejo/CGI.pm/commit/5379eb18e87b7f985613f5c4f7bae94478a4fa2f.patchpatch

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