Debian Security Advisory

DLA-2467-1 lxml -- LTS security update

Date Reported:
27 Nov 2020
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2018-19787, CVE-2020-27783.
More information:
  • CVE-2018-19787

    It was discovered that there was a XSS injection vulnerability in the LXML HTML/XSS manipulation library for Python.

  • CVE-2020-27783

    javascript escaping through the <noscript> and <style> combinations.

For Debian 9 stretch, these problems have been fixed in version 3.7.1-1+deb9u1.

We recommend that you upgrade your lxml packages.

For the detailed security status of lxml please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: