python_dotenv-0.20.0-py3-none-any.whl: 1 vulnerabilities (highest severity is: 6.6)

[mend-bolt-for-github]

Vulnerable Library - python_dotenv-0.20.0-py3-none-any.whl

Read key-value pairs from a .env file and set them as environment variables

Library home page: https://files.pythonhosted.org/packages/30/5f/2e5c564bd86349fe6b82ca840f46acf6f4bb76d79ba9057fce3d3e008864/python_dotenv-0.20.0-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/20260331025831/40/python_dotenv-0.20.0-py3-none-any.whl

Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (python_dotenv version)	Remediation Possible**
CVE-2026-28684	Medium	6.6	python_dotenv-0.20.0-py3-none-any.whl	Direct	1.2.2	❌

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

Details

CVE-2026-28684

Vulnerable Library - python_dotenv-0.20.0-py3-none-any.whl

Read key-value pairs from a .env file and set them as environment variables

Library home page: https://files.pythonhosted.org/packages/30/5f/2e5c564bd86349fe6b82ca840f46acf6f4bb76d79ba9057fce3d3e008864/python_dotenv-0.20.0-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/20260331025831/40/python_dotenv-0.20.0-py3-none-any.whl

Dependency Hierarchy:

• ❌ python_dotenv-0.20.0-py3-none-any.whl (Vulnerable Library)

Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183

Found in base branch: main

Vulnerability Details

python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, "set_key()" and "unset_key()" in python-dotenv follow symbolic links when rewriting ".env" files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a cross-device rename fallback is triggered. Users should upgrade to v.1.2.2 or, as a workaround, apply the patch manually.

Publish Date: 2026-04-20

URL: CVE-2026-28684

CVSS 3 Score Details (6.6)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-mf9w-mj56-hr94

Release Date: 2026-04-20

Fix Resolution: 1.2.2

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