PYSEC-2021-66

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/jinja2/PYSEC-2021-66.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2021-66
Aliases
Published
2021-02-01T20:15:00Z
Modified
2023-11-01T05:42:36.037060Z
Summary
[none]
Details

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the _punctuation_re regex operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.

References

Affected packages

PyPI / jinja2

Package

Name
jinja2
View open source insights on deps.dev
Purl
pkg:pypi/jinja2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.11.3

Affected versions

2.*

2.0rc1
2.0
2.1
2.1.1
2.2
2.2.1
2.3
2.3.1
2.4
2.4.1
2.5
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.6
2.7
2.7.1
2.7.2
2.7.3
2.8
2.8.1
2.9
2.9.1
2.9.2
2.9.3
2.9.4
2.9.5
2.9.6
2.10
2.10.1
2.10.2
2.10.3
2.11.0
2.11.1
2.11.2