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CVE details

CVE-2026-120639

CGI versions before 5.00 for Perl allow HTTP header injection via entity decoding after the newline check in header and unchecked values in multipart_start and do_push. With autoEscape off, header decodes HTML entities in extra header values after its newline check, so an encoded CR or LF reaches the response. multipart_start does not check header values for newlines, and do_push does not check the type it prints in each part. An application that passes request data into these header values can be made to add headers or split the response.

Score
–
Published
2026-11-03
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
www/p5-CGIp5-CGI4.72unaddressedsunpoet@FreeBSD.org

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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.

No CPE in the port Makefile

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-2026-120639: CGI versions before 5.00 for Perl allow HTTP header
	  injection via entity decoding after the newline check in header and
	  unchecked values in multipart_start and do_push. With autoEscape
	  off, header decodes HTML entities in extra header values after its
	  newline check, so an encoded CR or LF reaches the response.
	  multipart_start does not check header values for newlines, and
	  do_push does not check the type it prints in each part. An
	  application that passes request data into these header values can
	  be made to add headers or split the response.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-120639</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-120639</url>
    </references>
    <dates>
      <discovery>2026-11-03</discovery>
      <entry>2026-11-04</entry>
    </dates>
  </vuln>