CVE-2026-120641

Unknown

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.

SeverityUnknown

CVSS—

Exploit probability—

ProductCgi

PublishedNov 4, 2026

First seenNov 4, 2026

Weakness typeCWE-22Path traversal

How to fix

Update

CGI5.00 or later

Patches

github.com/leejo/CGI.pm/commit/5379eb18e87b7f985613f5c4f7bae94478a4fa2f.patch

Vendor advisories

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

Affected products

Product	Affected versions	Fixed in
CGI	v < 5.00	5.00

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