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CVE details

CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The is_chunked_transfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that transfer-coding names are case-insensitive.

Score
8.7 high
Published
2026-04-07
Links
NVD · cve.org

Matched ports (1)

PortPackageVersionStatusMaintainer
www/tinyproxytinyproxy1.11.3,1unaddressedsunpoet@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>tinyproxy</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing
	desynchronization due to a case-sensitive comparison of the
	Transfer-Encoding header in src/reqs.c. The is_chunked_transfer
	function uses strcmp to compare the header value against "chunked",
	even though RFC 7230 specifies that transfer-coding names are
	case-insensitive.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-31842</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-31842</url>
    </references>
    <dates>
      <discovery>2026-04-07</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>