nextcloud / nextcloud/password_policy

Make "must contain special character" rule Unicode Safe

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0. Needs triage bug
Dominant language
PHP
Stars
39
Forks
27
Avg merge
1h 36m
Merged PRs (30d)
10

Description

The password_policy app enforces the “must contain a special character” rule using ctype_alnum(). This is not Unicode-safe for UTF-8 passwords.

App version observed: password_policy 5.0.0
Nextcloud 33.0.2

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the password-policy check that calls ctype_alnum() and review existing tests for special-character validation. Reproduce the behavior with UTF-8 passwords, add regression coverage, and confirm that the rule handles those passwords without the reported Unicode limitation.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
security
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
64/100

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