Maniphest T39884

Do not allow usernames which look like IPv6 addresses
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	ToAruShiroiNeko
	Jun 23 2012, 9:11 PM

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Description

http://en.wikipedia.org/wiki/Special:Contributions/200:0DB8:0016:0005:0ACE:0BD1:07BE

Above is a registered user that looks like an IPv6 address. It is actually invalid:

http://ipduh.com/ipv6/whois/?200:0DB8:0016:0005:0ACE:0BD1:07BE

Perhaps mediawiki should prevent such username creations. Restricting the use of ":" in usernames may be one simple solution.

Version: unspecified
Severity: normal

Details

Reference: bz37884

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	Disallow usernames that look like IPv6 addresses	mediawiki/core	master	+128 -49

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Related Objects
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		Status	Subtype	Assigned	Task
		Resolved		None	T37540 Enable full IPv6 support on Wikimedia wikis
		Open	BUG REPORT	None	T35853 Can register usernames that could be potentially valid IPv6 addresses
		Open		None	T39884 Do not allow usernames which look like IPv6 addresses

Event Timeline

• bzimport raised the priority of this task from to Needs Triage.Nov 22 2014, 12:23 AM

• bzimport added a project: MediaWiki-User-login-and-signup.

• bzimport set Reference to bz37884.

• bzimport added a subscriber: Unknown Object (MLST).

ToAruShiroiNeko created this task.Jun 23 2012, 9:11 PM

Fixed at https://gerrit.wikimedia.org/r/12782

Nemo_bis mentioned this in T89495: Check for invalid usernames.Feb 13 2015, 10:10 PM

Krenair subscribed.Feb 13 2015, 10:13 PM

Winston_Sung closed this task as a duplicate of T35853: Can register usernames that could be potentially valid IPv6 addresses.May 3 2023, 9:42 AM

Change 12782 had a related patch set uploaded (by Winston Sung; author: Platonides):

[mediawiki/core@master] Disallow usernames that look like IPv6 addresses

https://gerrit.wikimedia.org/r/12782

gerritbot added a project: Patch-For-Review.May 8 2023, 6:33 AM

Winston_Sung reopened this task as Open.May 8 2023, 6:34 AM

Winston_Sung edited projects, added Patch-Needs-Improvement; removed Patch-For-Review.

Winston_Sung added a parent task: T35853: Can register usernames that could be potentially valid IPv6 addresses.

Jdlrobson moved this task from Backlog to Functional on the MediaWiki-User-login-and-signup board.Jul 13 2023, 4:07 PM

Change #12782 abandoned by Hashar:

[mediawiki/core@master] Disallow usernames that look like IPv6 addresses

https://gerrit.wikimedia.org/r/12782

Change #12782 restored by Thcipriani:

[mediawiki/core@master] Disallow usernames that look like IPv6 addresses

https://gerrit.wikimedia.org/r/12782

gerritbot added a project: Patch-For-Review.Mar 30 2026, 11:38 PM

Restricted Application removed a project: Patch-Needs-Improvement. · View Herald TranscriptMar 30 2026, 11:38 PM

Pppery edited projects, added Patch-Needs-Improvement; removed Patch-For-Review.Mar 31 2026, 12:52 AM