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Debian: HTTPS Everywhere Critical Malware Risk Advisory DLA-4331-1

debian lts
Calendar Grey October 14, 2025
Dist Debian Esm H88
HTTPS Everywhere was removed from Debian due to security risks. Upgrade your system to enhance protection.
The Firefox extension HTTPS Everywhere used to enforce encryption over HTTPS in major web browsers, a feature which has become obsolete because a HTTPS-only mode is built-in nowada...

Summary

The extension requires up-to-date https rules which are obtained from the
domain https-rulesets.org. This domain is no longer controlled by the original
upstream developers and registered by a third party now. Requests are
redirected to a known malware site. This poses a severe risk for users of HTTPS
Everywhere.

As a first step to remedy this problem, version 2025.10.14-0+deb11u1 will
completely remove all files associated with HTTPS Everywhere and only install a
README file to raise the awareness for this security problem. The Debian
packages parl-desktop and progress-linux-desktop will no longer depend on
webext-https-everywhere.

The source package https-everywhere and the binary package webext-https-
everywhere will be removed from Debian in a subsequent step.

We recommend to avoid using HTTPS Everywhere and to use web browsers, e.g.
Firefox, which support HTTPS only instead. For more information, please refer
to Debian bugs #1118030 and #1118045.

Read the Full Advisory


Severity
critical
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Critical

Package: https-everywhere
Version: 2025.10.14-0+deb11u1
Debian Bug: 1118030 1118045

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