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CVE-2022-40899: Python Charmers Future denial of service vulnerability

December 23, 2022 (updated April 15, 2025)

An issue discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers to cause a denial of service via crafted Set-Cookie header from malicious web server. This issue has been patched in version 0.18.3.

References

  • github.com/PythonCharmers/python-future
  • github.com/PythonCharmers/python-future/blob/master/src/future/backports/http/cookiejar.py
  • github.com/PythonCharmers/python-future/commit/c91d70b34ef0402aef3e9d04364ba98509dca76f
  • github.com/PythonCharmers/python-future/pull/610
  • github.com/advisories/GHSA-v3c5-jqr6-7qm8
  • github.com/pypa/advisory-database/tree/main/vulns/future/PYSEC-2022-42991.yaml
  • github.com/python/cpython/pull/17157
  • nvd.nist.gov/vuln/detail/CVE-2022-40899
  • pypi.org/project/future
  • pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages

Code Behaviors & Features

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Affected versions

All versions before 0.18.3

Fixed versions

  • 0.18.3

Solution

Upgrade to version 0.18.3 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption

Source file

pypi/future/CVE-2022-40899.yml

Spotted a mistake? Edit the file on GitLab.

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