PYSEC-2024-38

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/fastapi/PYSEC-2024-38.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2024-38
Aliases
Published
2024-02-05T15:15:00Z
Modified
2024-11-14T17:57:11.358279Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, python-multipart uses a Regular Expression to parse the HTTP Content-Type header, including options. An attacker could send a custom-made Content-Type option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using python-multipart. This vulnerability has been patched in version 0.109.1.

References

Affected packages

PyPI / fastapi

Package

Affected ranges

Type
GIT
Repo
https://github.com/tiangolo/fastapi
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.109.1

Affected versions

0.*

0.1.0
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
0.1.10
0.1.11
0.1.12
0.1.13
0.1.14
0.1.15
0.1.16
0.1.17
0.1.18
0.1.19
0.2.0
0.2.1
0.3.0
0.4.0
0.5.0
0.5.1
0.6.0
0.6.1
0.6.2
0.6.3
0.6.4
0.7.0
0.7.1
0.8.0
0.9.0
0.9.1
0.10.0
0.10.1
0.10.2
0.11.0
0.12.0
0.12.1
0.13.0
0.14.0
0.15.0
0.16.0
0.17.0
0.18.0
0.19.0
0.20.0
0.20.1
0.21.0
0.22.0
0.23.0
0.24.0
0.25.0
0.26.0
0.27.0
0.27.1
0.27.2
0.28.0
0.29.0
0.29.1
0.30.0
0.30.1
0.31.0
0.32.0
0.33.0
0.34.0
0.35.0
0.36.0
0.37.0
0.38.0
0.38.1
0.39.0
0.40.0
0.41.0
0.42.0
0.43.0
0.44.0
0.44.1
0.45.0
0.46.0
0.47.0
0.47.1
0.48.0
0.49.0
0.49.1
0.49.2
0.50.0
0.51.0
0.52.0
0.53.0
0.53.1
0.53.2
0.54.0
0.54.1
0.54.2
0.55.0
0.55.1
0.56.0
0.56.1
0.57.0
0.58.0
0.58.1
0.59.0
0.60.0
0.60.1
0.60.2
0.61.0
0.61.1
0.61.2
0.62.0
0.63.0
0.64.0
0.65.0
0.65.1
0.65.2
0.65.3
0.66.0
0.66.1
0.67.0
0.68.0
0.68.1
0.68.2
0.69.0
0.70.0
0.70.1
0.71.0
0.72.0
0.73.0
0.74.0
0.74.1
0.75.0
0.75.1
0.75.2
0.76.0
0.77.0
0.77.1
0.78.0
0.79.0
0.79.1
0.80.0
0.81.0
0.82.0
0.83.0
0.84.0
0.85.0
0.85.1
0.85.2
0.86.0
0.87.0
0.88.0
0.89.0
0.89.1
0.90.0
0.90.1
0.91.0
0.92.0
0.93.0
0.94.0
0.94.1
0.95.0
0.95.1
0.95.2
0.96.0
0.96.1
0.97.0
0.98.0
0.99.0
0.99.1
0.100.0b1
0.100.0b2
0.100.0b3
0.100.0
0.100.1
0.101.0
0.101.1
0.102.0
0.103.0
0.103.1
0.103.2
0.104.0
0.104.1
0.105.0
0.106.0
0.107.0
0.108.0
0.109.0