GNU bug report logs - #47319
python-lxml is vulnerable to CVE-2021-28957

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Package: guix;

Reported by: Léo Le Bouter <lle-bout <at> zaclys.net>

Date: Mon, 22 Mar 2021 14:10:02 UTC

Severity: normal

Tags: security

Done: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>

Bug is archived. No further changes may be made.

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Message #24 received at 47319-done <at> debbugs.gnu.org (full text, mbox):

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Léo Le Bouter <lle-bout <at> zaclys.net>
Cc: 47319-done <at> debbugs.gnu.org
Subject: Re: bug#47319: python-lxml is vulnerable to CVE-2021-28957
Date: Tue, 22 Mar 2022 22:32:52 -0400

Hi,

Léo Le Bouter <lle-bout <at> zaclys.net> writes:

> CVE-2021-28957	21.03.21 06:15
> lxml 4.6.2 places the HTML action attribute into defs.link_attrs (in
> html/defs.py) for later use in input sanitization, but does not do the
> same for the HTML5 formaction attribute.
>
> Upstream fixed it in 4.6.3 (
> https://github.com/lxml/lxml/commit/2d01a1ba8984e0483ce6619b972832377f208a0d
> ), so we should probably upgrade to that.

This is the current version in Guix.

Closing; thanks!

Maxim
This bug report was last modified 3 years and 67 days ago.

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