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CVE details

CVE-2026-62268

borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption. Prior to 1.4.5 and 2.0.0b22, extracting a malicious archive can follow a symlinked parent path or resolve embedded dot-dot path components and delete or overwrite files outside the extraction directory. A crafted slave hardlink can also use an attacker-controlled hardlink source outside the extraction directory and hard-link that file into the restored tree, disclosing its contents. Creating the malicious archive requires repository access and, for encrypted or authenticated repositories, the Borg key and passphrase; a victim must then extract the archive. This issue is fixed in versions 1.4.5 and 2.0.0b22.

Score
5.3 medium
Published
2026-11-05
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
archivers/py-borgbackuppy312-borgbackup1.4.4_4unaddressedmandree@FreeBSD.org

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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.

No CPE in the port Makefile

archivers/py-borgbackup (CPE taken from Repology) 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>py312-borgbackup -- FIXME</topic>
    <affects>
      <package>
	<name>py312-borgbackup</name>
	<range><ge>1.4</ge><lt>1.4.5</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>CVE-2026-62268: borgbackup is an opensource, deduplicating archiver
	  with compression and authenticated encryption. Prior to 1.4.5 and
	  2.0.0b22, extracting a malicious archive can follow a symlinked
	  parent path or resolve embedded dot-dot path components and delete
	  or overwrite files outside the extraction directory. A crafted
	  slave hardlink can also use an attacker-controlled hardlink source
	  outside the extraction directory and hard-link that file into the
	  restored tree, disclosing its contents. Creating the malicious
	  archive requires repository access and, for encrypted or
	  authenticated repositories, the Borg key and passphrase; a victim
	  must then extract the archive. This issue is fixed in versions
	  1.4.5 and 2.0.0b22.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-62268</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-62268</url>
    </references>
    <dates>
      <discovery>2026-11-05</discovery>
      <entry>2026-11-06</entry>
    </dates>
  </vuln>