Bug 2567290 - CVE-2026-120647 perl-CGI: perl-cgi: Content-Disposition parameter injection via unescaped double quotes in attachment filenames [fedora-all]
Summary: CVE-2026-120647 perl-CGI: perl-cgi: Content-Disposition parameter injection v...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: perl-CGI
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Jitka Plesnikova
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["3d82ab56-7993-4cd0-a6bc-1...
Depends On:
Blocks: CVE-2026-120647
TreeView+ depends on / blocked
 
Reported: 2026-11-05 13:23 UTC by Marian Rehak
Modified: 2026-11-05 13:23 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Marian Rehak 2026-11-05 13:23:06 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

CGI versions before 5.00 for Perl allow Content-Disposition parameter injection via unescaped double quotes in the header attachment filename.

header(-attachment => $name) writes $name into the quoted filename parameter of Content-Disposition without escaping double quotes.

An application that passes request data as the attachment name can be made to send a second filename parameter, changing the name the response is saved under.


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