Skip to content
Fencer Vulns
low 3.9

CVE-2020-1738 json

Argument Injection in Ansible

published 2020-03-16 6 y ago modified 2026-06-17 4 mo ago also GHSA-f85h-23mf-2fwh , PYSEC-2020-10 , EUVD-2020-0003

cvss
3.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

A flaw was found in Ansible Engine when the module package or service is used and the parameter 'use' is not specified. If a previous task is executed with a malicious user, the module sent can be selected by the attacker using the ansible facts file. All versions in 2.7.x, 2.8.x and 2.9.x branches are believed to be vulnerable.

Patch / fix

  • pypi ansible 2.7.17, 2.8.9, 2.9.6
  • storm OpenStack Cloud Crowbar 8, OpenStack Cloud 8, HPE Helion OpenStack 8 1.2.3-3.6.1
  • ansible OpenStack Cloud Crowbar 8, OpenStack Cloud 8, HPE Helion OpenStack 8 2.9.14-3.15.1
  • grafana OpenStack Cloud Crowbar 8, OpenStack Cloud 8, HPE Helion OpenStack 8 6.7.4-4.12.1
  • ardana-mq OpenStack Cloud 8, HPE Helion OpenStack 8 8.0+git.1593618123.678c32b-3.26.1
  • ardana-nova OpenStack Cloud 8, HPE Helion OpenStack 8 8.0+git.1601298847.dd01585-3.42.1
  • crowbar-core OpenStack Cloud Crowbar 8 5.0+git.1600432272.b3ad722f0-3.44.1
  • python-kombu OpenStack Cloud Crowbar 8, OpenStack Cloud 8, HPE Helion OpenStack 8 4.1.0-3.7.1
  • ardana-cinder OpenStack Cloud 8, HPE Helion OpenStack 8 8.0+git.1596129856.263f430-3.43.1

suse advisories SUSE-SU-2020:3309-1

  • ansible-14 openSUSE Tumbleweed 14.6.0-1.1
  • ansible-13 openSUSE Tumbleweed 13.7.0-1.1
  • ansible-12 openSUSE Tumbleweed 12.2.0-1.1
  • ansible-11 openSUSE Tumbleweed 11.11.0-1.1
  • ansible-10 openSUSE Tumbleweed 10.6.0-1.1
  • ansible-9 openSUSE Tumbleweed 9.8.0-1.1
  • ansible Package Hub 15 SP3, openSUSE Leap 15.3 2.9.21-bp153.2.3.1

opensuse advisories openSUSE-SU-2026:12447-1openSUSE-SU-2026:10944-1openSUSE-SU-2025:15753-1openSUSE-SU-2025:15605-1openSUSE-SU-2024:14536-1openSUSE-SU-2024:14244-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-1738 updated cvss 3.9

ansible: module package can be selected by the ansible facts

  • Red Hat Ansible Engine 2 ansible, ansible-test Red Hat Ansible Tower 3 ansible
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ceph Storage 2 ansible
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Ceph Storage 3 ansible
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenStack Platform 10 (Newton) ansible
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) ansible Red Hat Storage 3 ansible
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ansible Tower 3.4 for RHEL 7 Server ansible-tower-34/ansible-tower-memcached 1.4.15-28, ansible-tower-35/ansible-tower-memcached 1.4.15-28, ansible-tower-37/ansible-tower-memcached-rhel7 1.4.15-28
    fixed: vendor fix RHBA-2020:0547
  • Red Hat Ansible Tower 3.5 for RHEL 7 Server ansible-tower-35/ansible-tower 3.5.6-1
    fixed: vendor fix RHBA-2020:1539
  • Red Hat CloudForms Management Engine 5 ansible-tower, ansible-tower-ui, ansible-tower-setup, ansible-tower-server, ansible-tower-venv-tower, ansible-tower-venv-ansible
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.9 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L
NVD 3.1 3.9 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L
NVD 2.0 2.6 AV:L/AC:H/Au:N/C:N/I:P/A:P
GitHub 3.1 3.9 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L

Affected packages

ecosystem package affected fixed in
pypi ansible
<=2.7.16
>=2.8.0a1, <=2.8.10
>=2.9.0a1, <=2.9.6
<2.7.17
>=2.8.0, <2.8.9
>=2.9.0, <2.9.6
2.7.17
2.8.9
2.9.6

Affected products

  • Red Hat ansible

Classification

Weakness
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.