VDB-200679 · CVE-2022-29361 · Nessus 276278

Pallets Werkzeug up to 2.1.0 HTTP Request Parser request smuggling ⚔ [Disputed]

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Pallets Werkzeug up to 2.1.0 and classified as critical. The affected element is an unknown function of the component HTTP Request Parser. Performing a manipulation results in request smuggling. This vulnerability is cataloged as CVE-2022-29361. There is no exploit available. The presence of this vulnerability remains uncertain at this time. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Pallets Werkzeug up to 2.1.0. It has been classified as critical. This affects an unknown part of the component HTTP Request Parser. The manipulation with an unknown input leads to a request smuggling vulnerability. CWE is classifying the issue as CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 05/25/2022 as 9a3a981d70d2e9ec3344b5192f86fcaf3210cd85. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2022-29361 since 04/16/2022. The technical details are unknown and an exploit is not publicly available.

The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 276278 (TencentOS Server 4: python-werkzeug (TSSA-2025:0049)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 9a3a981d70d2e9ec3344b5192f86fcaf3210cd85 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (276278). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Pallets

Name

Werkzeug

Version

License

open-source

Website

Product: https://github.com/pallets/werkzeug/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Request smuggling
CWE: CWE-444
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 276278
Nessus Name: TencentOS Server 4: python-werkzeug (TSSA-2025:0049)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 9a3a981d70d2e9ec3344b5192f86fcaf3210cd85

Timelineinfo

04/16/2022 🔍
05/25/2022 +39 days 🔍
05/25/2022 +0 days 🔍
11/24/2025 +1279 days 🔍

Sourcesinfo

Product: github.com

Advisory: 9a3a981d70d2e9ec3344b5192f86fcaf3210cd85
Status: Confirmed
Disputed: 🔍

CVE: CVE-2022-29361 (🔍)
GCVE (CVE): GCVE-0-2022-29361
GCVE (VulDB): GCVE-100-200679

Entryinfo

Created: 05/25/2022 10:34
Updated: 11/24/2025 05:37
Changes: 05/25/2022 10:34 (41), 05/30/2022 08:03 (1), 08/03/2024 10:35 (35), 11/24/2025 05:37 (3)
Complete: 🔍
Cache ID: 216::103