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PYSEC-2020-178
Quick fix
PYSEC-2020-178 — waitress: upgrade to the fixed version with the command below.
pip install --upgrade 'waitress>=575994cd42e83fd772a5f7ec98b2c56751bd3f65'Details
Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.
Are you affected?
Enter the version of the package you're using.
Affected packages
PyPI/waitress
Introduced in:
0Fixed in: 575994cd42e83fd772a5f7ec98b2c56751bd3f65Fix
pip install --upgrade 'waitress>=575994cd42e83fd772a5f7ec98b2c56751bd3f65'References
- https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes[WEB]
- https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65[FIX]
- https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6[ADVISORY]
- https://github.com/advisories/GHSA-j7j6-7hfx-5522[ADVISORY]