CVE-2017-7481

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

VendorProductVersions
[UNKNOWN]ansibleansible 2.3.1.0; ansible 2.4.0.0

References

Timeline

Published
Jul 19, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2017-7481: Critical severity, CVSS 9.8 | Vulnix