Technology1 min read

The Daily WTF

By · Published by Everything Blog

In short

The vulnerability targets Linux distributions built around the musl libc library, with Alpine Linux being a primary example. By submitting an SSH password longer than 256 characters, unauthorized users can successfully access accounts that possess no set password. Because administrators frequently leave root accounts passwordless for safety, containers hosting web applications are now exposed to direct compromise.

Key points

  • Systems utilizing musl libc are vulnerable to unauthorized SSH logins on accounts without…: Systems utilizing musl libc are vulnerable to unauthorized SSH logins on accounts without set passwords.
  • Containers hosting web applications are at significant risk due to the widespread deploym…: Containers hosting web applications are at significant risk due to the widespread deployment of affected distributions.
  • Leaving administrative accounts without passwords fails to prevent remote intrusion on af…: Leaving administrative accounts without passwords fails to prevent remote intrusion on affected Linux environments.

Sources checked by our analysis pipeline: 1

In the Hole

by in Feature Articles on 2026-11-11Look, I don't want to keep talking about security issues. Blame AI. Just another thing it ruined.

At this point, you've probably heard about *sshole. If you haven't, the quick summary: on some Linux systems, SSH will log you in to an account with no password if you supply a password greater than 256 characters long. Frequently, you might make accounts like root

nominally inaccessible by giving it no password, so this is a big deal. Worse, it impacts varieties of Linux that use the musl implementation of libc, like Alpine- the kinds of varieties that run inside a container hosting a web app somewhere.

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