CVE-2026-120638
CGI versions before 5.00 for Perl allow open redirects via HTML entity decoding of the URL after application validation in redirect. redirect decodes HTML entities in its URL before writing the Location header, so a URL the application has already validated can change meaning. For example, //evil.example/ becomes //evil.example/ and sends the user to another host.
- Score
- –
- Published
- 2026-11-03
- Links
- NVD · cve.org · Report wrong data
Matched ports (1)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| www/p5-CGI | p5-CGI | 4.72 | unaddressed | sunpoet@FreeBSD.org |
Template for a VuXML entry
Check the version numbers before you commit this entry. Some ports share an entry in the CVE database with another port, such as sqlite2 and sqlite3. The version shown here may then be one that never existed for this port.
Ranges per package from the CVE rows that match this port, in pkg notation with the port's epoch and revision, every bound checked with pkg; one range per epoch the port actually had. make newentry in security/vuxml creates the vid.
www/p5-CGI (CPE matched by the package name) has no USES=cpe. The CVE was matched through a CPE from another source, so the package and the version range may belong to a different product. Check the CVE record before using this entry.
<vuln vid="FIXME (make newentry)">
<topic>p5-CGI -- FIXME</topic>
<affects>
<package>
<name>p5-CGI</name>
<range><lt>5.00</lt></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>CVE-2026-120638: CGI versions before 5.00 for Perl allow open
redirects via HTML entity decoding of the URL after application
validation in redirect. redirect decodes HTML entities in its URL
before writing the Location header, so a URL the application has
already validated can change meaning. For example,
/&#47;evil.example/ becomes //evil.example/ and sends the user to
another host.</p>
</body>
</description>
<references>
<cvename>CVE-2026-120638</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-120638</url>
</references>
<dates>
<discovery>2026-11-03</discovery>
<entry>2026-11-04</entry>
</dates>
</vuln>