PYSEC-2021-852
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/lxml/PYSEC-2021-852.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2021-852
- Aliases
- Published
- 2021-12-13T18:15:00Z
- Modified
- 2026-04-09T18:24:01.261452Z
- Summary
- [none]
- 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.
- References
-
- https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0
- https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776
- https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8
- https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a
Affected packages
PyPI / lxml
Package
- Name
- lxml
- View open source insights on deps.dev
- Purl
- pkg:pypi/lxml
Affected ranges
- Type
- GIT
- Repo
- https://github.com/lxml/lxml
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Type
- GIT
- Repo
- https://github.com/lxml/lxml#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.5
Affected versions
0.*
0.9
0.9.1
0.9.2
1.*
1.0.beta
1.0
1.0.1
1.0.2
1.0.3
1.0.4
1.1alpha
1.1beta
1.1
1.1.1
1.1.2
1.2
1.2.1
1.3beta
1.3
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
2.*
2.0alpha1
2.0alpha2
2.0alpha3
2.0alpha4
2.0alpha5
2.0alpha6
2.0beta1
2.0beta2
2.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.0.10
2.0.11
2.1alpha1
2.1beta1
2.1beta2
2.1beta3
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.2alpha1
2.2beta1
2.2beta2
2.2beta3
2.2beta4
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.3alpha1
2.3alpha2
2.3beta1
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
3.*
3.0
3.0.1
3.0.2
3.1beta1
3.1.0
3.1.1
3.1.2
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.3.0beta1
3.3.0beta2
3.3.0beta3
3.3.0beta4
3.3.0beta5
3.3.0
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.4.0
3.4.1
3.4.2
3.4.3
3.4.4
3.5.0b1
3.5.0
3.6.0
3.6.1
3.6.2
3.6.3
3.6.4
3.7.0
3.7.1
3.7.2
3.7.3
3.8.0
4.*
4.0.0
4.1.0
4.1.1
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.4.0
4.4.1
4.4.2
4.4.3
4.5.0
4.5.1
4.5.2
4.6.0
4.6.1
4.6.2
4.6.3
4.6.4