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Vulnerability record · CVE-2020-1734 · published 3 March 2020

CVE-2020-1734: Redhat ansible engine os command injection vulnerability

Redhat · Ansible Engine

A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. An attacker could take advantage and run arbitrary commands by overwriting the ansible facts.

7.4 CVSS 3.1 High EPSS 0.46% · top 62.5% CWE-78 · OS command injection
7.4CVSS 3.1 base score, v2 3.7
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. An attacker could take advantage and run arbitrary commands by overwriting the ansible facts.

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1734 Issue TrackingThird Party Advisory
https://github.com/ansible/ansible/issues/67792 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1734 Issue TrackingThird Party Advisory
https://github.com/ansible/ansible/issues/67792 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-1734), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.