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CVE details

CVE-2026-118373

LibreSSL ocspcheck through 4.4.0 contains a cleartext transmission vulnerability because url2host() discards the OCSP URL scheme and http_alloc() only selects TLS for port 443. On-path network attackers can read OCSP requests sent to https responder URLs on non-443 ports, exposing certificate serial numbers, issuer hashes, and nonces.

Score
6.3 medium
Published
2026-10-28
Links
NVD · cve.org · Report wrong data

Matched ports (4)

PortPackageVersionStatusMaintainer
security/libressllibressl4.4.0unaddressedbrnrd@FreeBSD.org
security/libressllibressl-libtls4.4.0unaddressedbrnrd@FreeBSD.org
security/libressl-devellibressl-devel4.4.0unaddressedbrnrd@FreeBSD.org
security/libressl-devellibressl-devel-libtls4.4.0unaddressedbrnrd@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>libressl</name>
	<range><lt>FIXME</lt></range>
      </package>
      <package>
	<name>libressl-libtls</name>
	<range><lt>FIXME</lt></range>
      </package>
      <package>
	<name>libressl-devel</name>
	<range><lt>FIXME</lt></range>
      </package>
      <package>
	<name>libressl-devel-libtls</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>LibreSSL ocspcheck through 4.4.0 contains a cleartext transmission
	vulnerability because url2host() discards the OCSP URL scheme and
	http_alloc() only selects TLS for port 443. On-path network attackers
	can read OCSP requests sent to https responder URLs on non-443 ports,
	exposing certificate serial numbers, issuer hashes, and nonces.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-118373</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-118373</url>
    </references>
    <dates>
      <discovery>2026-10-28</discovery>
      <entry>2026-10-28</entry>
    </dates>
  </vuln>