Bug 2566611 (CVE-2026-120648) - CVE-2026-120648 perl-CGI: perl-CGI: HTML injection via unescaped comment delimiter
Summary: CVE-2026-120648 perl-CGI: perl-CGI: HTML injection via unescaped comment deli...
Keywords:
Status: NEW
Alias: CVE-2026-120648
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 23:52 UTC by OSIDB Bzimport
Modified: 2026-11-04 00:12 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-11-03 23:52:29 UTC 
CGI versions before 5.00 for Perl allow HTML injection via text containing --> in comment.

Arguments are placed between <!-- and --> without escaping, so text containing --> closes the comment early.

An application that passes request data to comment can be made to inject HTML into the page.
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