CVE-2022-29361

CRITICAL 9.8CVE-2022-29361 · PYSEC-2022-203 · Published 25/05/2022 · updated 17/06/2026

Package	Affected versions	Patched versions
werkzeug PyPI	`< 2.1.1`	`2.1.1`
werkzeug palletsprojects	`≤ 2.1.0`	No fix yet

Description

** DISPUTED ** Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body. NOTE: the vendor's position is that this behavior can only occur in unsupported configurations involving development mode and an HTTP server from outside the Werkzeug project.

NVD description

Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body. NOTE: the vendor's position is that this behavior can only occur in unsupported configurations involving development mode and an HTTP server from outside the Werkzeug project

References

pallets/werkzeug commit 9a3a981 · FIX
pallets/werkzeug · REPORT

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