PT-2020-22673 · Waitress · Waitress

Published

2020-01-22

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Updated

2020-01-22

None

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Name of the Vulnerable Software and Affected Versions Waitress versions prior to 1.4.0
Description The issue allows request smuggling by sending the Content-Length header twice. When a double Content-Length header is sent, it gets header folded into a comma-separated value, which cannot be cast to an integer, resulting in the Content-Length being set to 0 internally. This causes the request body to be treated as a new request in HTTP pipelining.
Recommendations For versions prior to 1.4.0, update to Waitress 1.4.0 to resolve the issue.
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Related Identifiers

PYSEC-2020-197

Affected Products

Waitress