VULNERABILITY INTELLIGENCE

CVE-2017-7481

CVSS score9.8 CRITICAL
EPSS probability4.78%
CISA KEVNot currently listed
Published2018-07-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe. If an attacker could control the results of lookup() calls, they could inject Unicode strings to be parsed by the jinja2 templating system, resulting in code execution. By default, the jinja2 templating language is now marked as 'unsafe' and is not evaluated.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references