werkzeug-3.0.3-py3-none-any.whl: 4 vulnerabilities (highest severity is: 7.5)

[mend-for-github-com]

Vulnerable Library - werkzeug-3.0.3-py3-none-any.whl

The comprehensive WSGI web application library.

Library home page: https://files.pythonhosted.org/packages/9d/6e/e792999e816d19d7fcbfa94c730936750036d65656a76a5a688b57a656c4/werkzeug-3.0.3-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20251126140837_YAOJPN/python_UBHLPJ/20251126140838/werkzeug-3.0.3-py3-none-any.whl

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (werkzeug version)	Remediation Possible**
CVE-2024-49767	High	7.5	werkzeug-3.0.3-py3-none-any.whl	Direct	3.0.6	✅
CVE-2026-21860	Medium	5.3	werkzeug-3.0.3-py3-none-any.whl	Direct	3.1.5	✅
CVE-2025-66221	Medium	5.3	werkzeug-3.0.3-py3-none-any.whl	Direct	3.1.4	✅
CVE-2024-49766	Low	3.7	werkzeug-3.0.3-py3-none-any.whl	Direct	Werkzeug - 3.0.6	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2024-49767

Vulnerable Library - werkzeug-3.0.3-py3-none-any.whl

The comprehensive WSGI web application library.

Library home page: https://files.pythonhosted.org/packages/9d/6e/e792999e816d19d7fcbfa94c730936750036d65656a76a5a688b57a656c4/werkzeug-3.0.3-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20251126140837_YAOJPN/python_UBHLPJ/20251126140838/werkzeug-3.0.3-py3-none-any.whl

Dependency Hierarchy:

• ❌ werkzeug-3.0.3-py3-none-any.whl (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Werkzeug is a Web Server Gateway Interface web application library. Applications using "werkzeug.formparser.MultiPartParser" corresponding to a version of Werkzeug prior to 3.0.6 to parse "multipart/form-data" requests (e.g. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. A specifically crafted form submission request can cause the parser to allocate and block 3 to 8 times the upload size in main memory. There is no upper limit; a single upload at 1 Gbit/s can exhaust 32 GB of RAM in less than 60 seconds. Werkzeug version 3.0.6 fixes this issue.
Mend Note: The description of this vulnerability differs from MITRE.

Publish Date: 2024-10-25

URL: CVE-2024-49767

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: GHSA-q34m-jh98-gwm2

Release Date: 2024-10-25

Fix Resolution: 3.0.6

⛑️ Automatic Remediation will be attempted for this issue.

CVE-2026-21860

Vulnerable Library - werkzeug-3.0.3-py3-none-any.whl

The comprehensive WSGI web application library.

Library home page: https://files.pythonhosted.org/packages/9d/6e/e792999e816d19d7fcbfa94c730936750036d65656a76a5a688b57a656c4/werkzeug-3.0.3-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20251126140837_YAOJPN/python_UBHLPJ/20251126140838/werkzeug-3.0.3-py3-none-any.whl

Dependency Hierarchy:

• ❌ werkzeug-3.0.3-py3-none-any.whl (Vulnerable Library)

Found in base branch: master

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-3.0.3-py3-none-any.whl

The comprehensive WSGI web application library.

Library home page: https://files.pythonhosted.org/packages/9d/6e/e792999e816d19d7fcbfa94c730936750036d65656a76a5a688b57a656c4/werkzeug-3.0.3-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20251126140837_YAOJPN/python_UBHLPJ/20251126140838/werkzeug-3.0.3-py3-none-any.whl

Dependency Hierarchy:

• ❌ werkzeug-3.0.3-py3-none-any.whl (Vulnerable Library)

Found in base branch: master

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-2024-49766

Vulnerable Library - werkzeug-3.0.3-py3-none-any.whl

The comprehensive WSGI web application library.

Library home page: https://files.pythonhosted.org/packages/9d/6e/e792999e816d19d7fcbfa94c730936750036d65656a76a5a688b57a656c4/werkzeug-3.0.3-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20251126140837_YAOJPN/python_UBHLPJ/20251126140838/werkzeug-3.0.3-py3-none-any.whl

Dependency Hierarchy:

• ❌ werkzeug-3.0.3-py3-none-any.whl (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Werkzeug is a Web Server Gateway Interface web application library. On Python < 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python >= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.

Publish Date: 2024-10-25

URL: CVE-2024-49766

CVSS 3 Score Details (3.7)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-f9vj-2wh5-fj8j

Release Date: 2024-10-25

Fix Resolution: Werkzeug - 3.0.6

---

⛑️Automatic Remediation will be attempted for this issue.