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CVE details

CVE-2026-91094

A directory traversal bug was discovered when unpacking 3.0 (quilt) source packages, where the packaging tarball could contain the quilt database directory (.pc) with attacker controlled symlinks, where that in combination with patches that would fail to apply, could be used to make the code used to restore the backup files to either modify or remove the files pointed to by the attacker controlled symlinks.

Score
–
Published
2026-11-13
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
archivers/dpkgdpkg1.19.8_1unaddressedndowens04@gmail.com

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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.

  <vuln vid="FIXME (make newentry)">
    <topic>dpkg -- FIXME</topic>
    <affects>
      <package>
	<name>dpkg</name>
	<!-- 1.23.12 is not released yet, newest upstream is 1.23.11 -->
	<range><lt>1.23.12</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>CVE-2026-91094: A directory traversal bug was discovered when
	  unpacking 3.0 (quilt) source packages, where the packaging tarball
	  could contain the quilt database directory (.pc) with attacker
	  controlled symlinks, where that in combination with patches that
	  would fail to apply, could be used to make the code used to restore
	  the backup files to either modify or remove the files pointed to by
	  the attacker controlled symlinks.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-91094</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-91094</url>
    </references>
    <dates>
      <discovery>2026-11-13</discovery>
      <entry>2026-11-13</entry>
    </dates>
  </vuln>