Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2026-27199
Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Dependency Hierarchy:
- ❌ werkzeug-3.1.3-py3-none-any.whl (Vulnerable Library)
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
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
Step up your Open Source Security Game with Mend here
CVE-2026-21860
Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Dependency Hierarchy:
- ❌ werkzeug-3.1.3-py3-none-any.whl (Vulnerable Library)
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
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
Step up your Open Source Security Game with Mend here
CVE-2025-66221
Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Dependency Hierarchy:
- ❌ werkzeug-3.1.3-py3-none-any.whl (Vulnerable Library)
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
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
Step up your Open Source Security Game with Mend here
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
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
Step up your Open Source Security Game with Mend here
Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
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
Step up your Open Source Security Game with Mend here
Vulnerable Library - werkzeug-3.1.3-py3-none-any.whl
The comprehensive WSGI web application library.
Library home page: https://files.pythonhosted.org/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/Pi-CryptoConnect-Xtreme/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: 4b141b8723afcbaab02c043a5df3a1cebe474b0b
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
Step up your Open Source Security Game with Mend here