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PYSEC-2021-852

Quick fix

PYSEC-2021-852 — lxml: upgrade to the fixed version with the command below.

pip install --upgrade 'lxml>=f2330237440df7e8f39c3ad1b1aa8852be3b27c0'

Details

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/lxml

Introduced in: 0Fixed in: f2330237440df7e8f39c3ad1b1aa8852be3b27c0

Fixpip install --upgrade 'lxml>=f2330237440df7e8f39c3ad1b1aa8852be3b27c0'

References

https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0[FIX]
https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776[FIX]
https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8[ADVISORY]
https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a[FIX]