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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From: Léo Le Bouter <lle-bout <at> zaclys.net>
To: 47319 <at> debbugs.gnu.org
Subject: bug#47319: python-lxml is vulnerable to CVE-2021-28957
Date: Mon, 22 Mar 2021 15:09:24 +0100

[Message part 1 (text/plain, inline)]
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.

Has lots of dependents so I suppose it needs grafting? Is that useful
and does it work for Python packages?

Léo

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

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