CVE-2022-29361

CRITICAL

Pallets Werkzeug <2.1.0 - SSRF

Title source: llm

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

Exploits (2)

nomisec WORKING POC 5 stars

by kevin-mizu · poc

https://github.com/kevin-mizu/Werkzeug-CVE-2022-29361-PoC

View Code ZIP pw:eip

nomisec WORKING POC 1 stars

by l3ragio · poc

https://github.com/l3ragio/CVE-2022-29361_Werkzeug_Client-Side-Desync-to-XSS

View Code ZIP pw:eip

References (2)

[Patch, Third Party Advisory] https://github.com/pallets/werkzeug/commit/9a3a981d70d2e9ec3344b5192f86fcaf3210cd85

[Issue Tracking, Third Party Advisory] https://github.com/pallets/werkzeug/issues/2420

Scores

CVSS v3 9.8

EPSS 0.3111

EPSS Percentile 96.8%

Attack Vector NETWORK

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

Details

CWE

CWE-444

Status published

Products (1)

palletsprojects/werkzeug < 2.1.0

Published May 25, 2022

Tracked Since Feb 18, 2026