Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2023-25577
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
- ❌ Werkzeug-2.2.2-py3-none-any.whl (Vulnerable Library)
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Prior to version 2.2.3, Werkzeug's multipart form data parser will parse an unlimited number of parts, including file parts. Parts can be a small amount of bytes, but each requires CPU time to parse and may use more memory as Python data. If a request can be made to an endpoint that accesses "request.data", "request.form", "request.files", or "request.get_data(parse_form_data=False)", it can cause unexpectedly high resource usage. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. Unlimited file parts can use up memory and file handles. If many concurrent requests are sent continuously, this can exhaust or kill all available workers. Version 2.2.3 contains a patch for this issue.
Publish Date: 2023-02-14
URL: CVE-2023-25577
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-25577
Release Date: 2023-02-14
Fix Resolution: 2.2.3
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-27199
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
- ❌ Werkzeug-2.2.2-py3-none-any.whl (Vulnerable Library)
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Versions 3.1.5 and below, the safe_join function allows Windows device names as filenames if preceded by other path segments. This was previously reported as GHSA-hgf8-39gv-g3f2, but the added filtering failed to account for the fact that safe_join accepts paths with multiple segments, such as example/NUL. The function send_from_directory uses safe_join to safely serve files at user-specified paths under a directory. If the application is running on Windows, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely. This issue has been fixed in version 3.1.6.
Publish Date: 2026-02-21
URL: CVE-2026-27199
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-02-21
Fix Resolution: werkzeug - 3.1.6,https://github.com/pallets/werkzeug.git - 3.1.6
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-21860
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
- ❌ Werkzeug-2.2.2-py3-none-any.whl (Vulnerable Library)
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.5, Werkzeug's safe_join function allows path segments with Windows device names that have file extensions or trailing spaces. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. Windows still accepts them with any file extension, such as CON.txt, or trailing spaces such as CON. This issue has been patched in version 3.1.5.
Publish Date: 2026-01-08
URL: CVE-2026-21860
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-87hc-h4r5-73f7
Release Date: 2026-01-08
Fix Resolution: 3.1.5
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2025-66221
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
- ❌ Werkzeug-2.2.2-py3-none-any.whl (Vulnerable Library)
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.4, Werkzeug's safe_join function allows path segments with Windows device names. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. send_from_directory uses safe_join to safely serve files at user-specified paths under a directory. If the application is running on Windows, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely. This issue has been patched in version 3.1.4.
Publish Date: 2025-11-29
URL: CVE-2025-66221
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2025-11-29
Fix Resolution: 3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2023-23934
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
- ❌ Werkzeug-2.2.2-py3-none-any.whl (Vulnerable Library)
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Browsers may allow "nameless" cookies that look like "=value" instead of "key=value". A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like "=__Host-test=bad" for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie "=__Host-test=bad" as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.
Publish Date: 2023-02-14
URL: CVE-2023-23934
CVSS 3 Score Details (2.6)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Adjacent
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-23934
Release Date: 2023-02-14
Fix Resolution: 2.2.3
⛑️ Automatic Remediation will be attempted for this issue.
⛑️Automatic Remediation will be attempted for this issue.
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Prior to version 2.2.3, Werkzeug's multipart form data parser will parse an unlimited number of parts, including file parts. Parts can be a small amount of bytes, but each requires CPU time to parse and may use more memory as Python data. If a request can be made to an endpoint that accesses "request.data", "request.form", "request.files", or "request.get_data(parse_form_data=False)", it can cause unexpectedly high resource usage. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. Unlimited file parts can use up memory and file handles. If many concurrent requests are sent continuously, this can exhaust or kill all available workers. Version 2.2.3 contains a patch for this issue.
Publish Date: 2023-02-14
URL: CVE-2023-25577
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-25577
Release Date: 2023-02-14
Fix Resolution: 2.2.3
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Versions 3.1.5 and below, the safe_join function allows Windows device names as filenames if preceded by other path segments. This was previously reported as GHSA-hgf8-39gv-g3f2, but the added filtering failed to account for the fact that safe_join accepts paths with multiple segments, such as example/NUL. The function send_from_directory uses safe_join to safely serve files at user-specified paths under a directory. If the application is running on Windows, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely. This issue has been fixed in version 3.1.6.
Publish Date: 2026-02-21
URL: CVE-2026-27199
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-02-21
Fix Resolution: werkzeug - 3.1.6,https://github.com/pallets/werkzeug.git - 3.1.6
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.5, Werkzeug's safe_join function allows path segments with Windows device names that have file extensions or trailing spaces. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. Windows still accepts them with any file extension, such as CON.txt, or trailing spaces such as CON. This issue has been patched in version 3.1.5.
Publish Date: 2026-01-08
URL: CVE-2026-21860
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-87hc-h4r5-73f7
Release Date: 2026-01-08
Fix Resolution: 3.1.5
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.4, Werkzeug's safe_join function allows path segments with Windows device names. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. send_from_directory uses safe_join to safely serve files at user-specified paths under a directory. If the application is running on Windows, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely. This issue has been patched in version 3.1.4.
Publish Date: 2025-11-29
URL: CVE-2025-66221
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2025-11-29
Fix Resolution: 3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - Werkzeug-2.2.2-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/c8/27/be6ddbcf60115305205de79c29004a0c6bc53cec814f733467b1bb89386d/Werkzeug-2.2.2-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/requirements.txt
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
Werkzeug is a comprehensive WSGI web application library. Browsers may allow "nameless" cookies that look like "=value" instead of "key=value". A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like "=__Host-test=bad" for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie "=__Host-test=bad" as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.
Publish Date: 2023-02-14
URL: CVE-2023-23934
CVSS 3 Score Details (2.6)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Adjacent
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-23934
Release Date: 2023-02-14
Fix Resolution: 2.2.3
⛑️ Automatic Remediation will be attempted for this issue.
⛑️Automatic Remediation will be attempted for this issue.