CVE-2022-40899

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.

CVSS v4.0 GitHub

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS v3.1 NVD

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

EPSS

1.87% chance of exploitation in the next 30 days, 79th percentile

Published

2022-12-22

Updated

2025-04-15

Proof-of-concept exploits (1)

• https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/

Security advisories

• https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages
• PythonCharmers/python-future/blob/master/src/future/backports/http/cookiejar.py#L215
• python/cpython/pull/17157
• https://pypi.org/project/future
• advisories/GHSA-v3c5-jqr6-7qm8

References

• CVE Record
• NVD entry