From: David Bremner <david@tethera.net>
To: Daniel Kahn Gillmor <dkg@fifthhorseman.net>,
notmuch mailing list <notmuch@notmuchmail.org>
Subject: Re: privacy problem: text/html parts pull in network resources
Date: Sun, 25 Jan 2015 18:51:43 +0100 [thread overview]
Message-ID: <87fvay3g0g.fsf@maritornes.cs.unb.ca> (raw)
In-Reply-To: <87ppa7q25w.fsf@alice.fifthhorseman.net>
Daniel Kahn Gillmor <dkg@fifthhorseman.net> writes:
> If i send a message with a text/html part (either it's only text/html,
> or all parts are rendered, or it's multipart/alternative with only a
> text/html subpart) and that HTML has <img
> src="http://example.org/test.png"/> in it, then notmuch will make a
> network request for that image.
>
> This is a privacy disaster, because it enables an e-mail sender to use
> "web bugs" to tell when a given notmuch user has opened their e-mail.
I've just pushed Austin's shr related series to master, so this problem
should be fixed as of commit b74ed1c. One tradeoff that we should at
least remark in NEWS, if not actually fix, is that I think there is now
no way to view such images in notmuch. I don't know offhand what other
html renderers will do.
d
next prev parent reply other threads:[~2015-01-25 17:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-21 21:00 privacy problem: text/html parts pull in network resources Daniel Kahn Gillmor
2015-01-21 21:14 ` Austin Clements
2015-01-21 21:36 ` Daniel Kahn Gillmor
2015-01-21 22:39 ` Austin Clements
2015-01-21 21:46 ` David Bremner
2015-01-22 7:25 ` Tomi Ollila
2015-01-25 17:51 ` David Bremner [this message]
2015-01-28 3:47 ` Daniel Kahn Gillmor
2015-01-28 4:44 ` Jinwoo Lee
2015-01-28 23:57 ` Jinwoo Lee
2015-01-29 18:03 ` Daniel Kahn Gillmor
2015-01-29 18:14 ` Jinwoo Lee
2015-01-30 12:12 ` David Edmondson
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