GHSA-g3rq-g295-4j3m

Suggest an improvement
Source
https://github.com/advisories/GHSA-g3rq-g295-4j3m
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-g3rq-g295-4j3m/GHSA-g3rq-g295-4j3m.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-g3rq-g295-4j3m
Aliases
Published
2021-03-19T21:28:05Z
Modified
2024-09-24T21:16:41.697100Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Regular Expression Denial of Service (ReDoS) in Jinja2
Details

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDOS vulnerability of the regex is mainly due to the sub-pattern [a-zA-Z0-9.-]+.[a-zA-Z0-9.-]+ 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

Ecosystem specific 

{
    "affected_functions": [
        "jinja2.utils.urlize"
    ]
}