fonttools-4.38.0-py3-none-any.whl: 2 vulnerabilities (highest severity is: 7.5)

[mend-bolt-for-github]

Vulnerable Library - fonttools-4.38.0-py3-none-any.whl

Tools to manipulate font files

Library home page: https://files.pythonhosted.org/packages/e3/d9/e9bae85e84737e76ebbcbea13607236da0c0699baed0ae4f1151b728a608/fonttools-4.38.0-py3-none-any.whl

Path to dependency file: /src/requirements.txt

Path to vulnerable library: /src/requirements.txt

Found in HEAD commit: 6500b2f18ad98b4ffb3cb2150216bcab7139ccdb

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (fonttools version)	Remediation Possible**
CVE-2023-45139	High	7.5	fonttools-4.38.0-py3-none-any.whl	Direct	fonttools - 4.43.0	❌
CVE-2025-66034	Medium	6.3	fonttools-4.38.0-py3-none-any.whl	Direct	4.60.2	❌

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

Details

CVE-2023-45139

Vulnerable Library - fonttools-4.38.0-py3-none-any.whl

Tools to manipulate font files

Library home page: https://files.pythonhosted.org/packages/e3/d9/e9bae85e84737e76ebbcbea13607236da0c0699baed0ae4f1151b728a608/fonttools-4.38.0-py3-none-any.whl

Path to dependency file: /src/requirements.txt

Path to vulnerable library: /src/requirements.txt

Dependency Hierarchy:

• ❌ fonttools-4.38.0-py3-none-any.whl (Vulnerable Library)

Found in HEAD commit: 6500b2f18ad98b4ffb3cb2150216bcab7139ccdb

Found in base branch: main

Vulnerability Details

fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.

Publish Date: 2024-01-10

URL: CVE-2023-45139

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: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-6673-4983-2vx5

Release Date: 2024-01-10

Fix Resolution: fonttools - 4.43.0

Step up your Open Source Security Game with Mend here

CVE-2025-66034

Vulnerable Library - fonttools-4.38.0-py3-none-any.whl

Tools to manipulate font files

Library home page: https://files.pythonhosted.org/packages/e3/d9/e9bae85e84737e76ebbcbea13607236da0c0699baed0ae4f1151b728a608/fonttools-4.38.0-py3-none-any.whl

Path to dependency file: /src/requirements.txt

Path to vulnerable library: /src/requirements.txt

Dependency Hierarchy:

• ❌ fonttools-4.38.0-py3-none-any.whl (Vulnerable Library)

Found in HEAD commit: 6500b2f18ad98b4ffb3cb2150216bcab7139ccdb

Found in base branch: main

Vulnerability Details

fontTools is a library for manipulating fonts, written in Python. In versions from 4.33.0 to before 4.60.2, the fonttools varLib (or python3 -m fontTools.varLib) script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The vulnerability affects the main() code path of fontTools.varLib, used by the fonttools varLib CLI and any code that invokes fontTools.varLib.main(). This issue has been patched in version 4.60.2.

Publish Date: 2025-11-29

URL: CVE-2025-66034

CVSS 3 Score Details (6.3)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-768j-98cg-p3fv

Release Date: 2025-11-29

Fix Resolution: 4.60.2

Step up your Open Source Security Game with Mend here