CVE-2025-27516 (High) detected in jinja2-3.1.4-py3-none-any.whl #48
Description
CVE-2025-27516 - High Severity Vulnerability
Vulnerable Library - jinja2-3.1.4-py3-none-any.whl
A very fast and expressive template engine.
Library home page: https://files.pythonhosted.org/packages/31/80/3a54838c3fb461f6fec263ebf3a3a41771bd05190238de3486aae8540c36/jinja2-3.1.4-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt
Dependency Hierarchy:
- ❌ jinja2-3.1.4-py3-none-any.whl (Vulnerable Library)
Found in HEAD commit: a67ec761862df0a9fbdc9e086d221dd3d395d3c4
Found in base branch: main
Vulnerability Details
Jinja is an extensible templating engine. Prior to 3.1.6, an oversight in how the Jinja sandboxed environment interacts with the |attr filter allows an attacker that controls the content of a template to execute arbitrary Python code. To exploit the vulnerability, an attacker needs to control the content of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates. Jinja's sandbox does catch calls to str.format and ensures they don't escape the sandbox. However, it's possible to use the |attr filter to get a reference to a string's plain format method, bypassing the sandbox. After the fix, the |attr filter no longer bypasses the environment's attribute lookup. This vulnerability is fixed in 3.1.6.
Publish Date: 2025-03-05
URL: CVE-2025-27516
CVSS 3 Score Details (7.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Suggested Fix
Type: Upgrade version
Release Date: 2025-03-05
Fix Resolution: 3.1.6
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