CVE-2026-120642
Received
Received - Intake
Perl CGI Module Unvalidated Tainted Input Handling Flaw
Vulnerability report for CVE-2026-120642, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-04
Last updated on: 2026-11-04
Assigner: CPANSec
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-1173 | The product does not use, or incorrectly uses, an input validation framework that is provided by the source language or an independent library. |