Critical

Ansible is vulnerable to an improper input validation in Ansible's handling of data sent from client systems

  • Disclosed: 24.04.2018
  • Updated: 11.10.2026 11:20

Ansible before versions 2.1.4.0, 2.2.1.0 is vulnerable to an improper input validation in Ansible's handling of data sent from client systems. An attacker with control over a client system being managed by Ansible and the ability to send facts back to the Ansible server could use this flaw to execute arbitrary code on the Ansible server using the Ansible server privileges.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) ansible < 2.1.4.0, >= 2.2.0.0, < 2.2.1.0 2.1.4.0, 2.2.1.0

References

CVSS score 8.1/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-20
Platform
Python (PyPI)
Package
ansible
Disclosed
24.04.2018
Updated
11.10.2026 11:20

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2018-39 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-m956-frf4-m2wr - CC BY 4.0

Vulnerability history: ansible

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (68) in the archive
Total entries
68
First → latest
09.2013 12.2025
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • Critical 9
  • High 24
  • Medium 27
  • Low 6
  • Unrated 2

Disclosures per year

  1. 2017: 3
  2. 2018: 12
  3. 2019: 8
  4. 2020: 29
  5. 2021: 7
  6. 2022: 3
  7. 2023: 1
  8. 2024: 0
  9. 2025: 1
  10. 2026: 0

earlier: 4

Severity:
  1. Ansible is vulnerable to an improper input validation in Ansible's handling of data sent from client systems this entry
    Critical · 8.1 CVE-2016-9587 < 2.1.4.0, >= 2.2.0.0, < 2.2.1.0 2.1.4.0, 2.2.1.0
  2. High · 7.5 CVE-2022-3697 >= 2.5.0, < 7.0.0 7.0.0
  3. High · 7.1 CVE-2021-3583 < 2.9.23rc1, >= 2.10.0a1, < 2.10.11rc1, >= 2.11.0a1, < 2.11.2rc1 2.9.23rc1, 2.10.11rc1, 2.11.2rc1
  4. High · 5.5 CVE-2021-20178 < 2.9.18 2.9.18
  5. High · 7.5 CVE-2021-20228 >= 2.10.0a1, < 2.10.6rc1, >= 2.9.0a1, < 2.9.18rc1, < 2.8.19rc1 2.10.6rc1, 2.9.18rc1, 2.8.19rc1
  6. High · 7.3 CVE-2019-14904 < 2.7.16, >= 2.8.0a1, < 2.8.8, >= 2.9.0a1, < 2.9.3 2.7.16, 2.8.8, 2.9.3
  7. High · 5.6 CVE-2019-14905 >= 2.7.0a1, < 2.7.16, >= 2.8.0a1, < 2.8.8, >= 2.9.0a1, < 2.9.3 2.7.16, 2.8.8, 2.9.3
  8. High · 7.8 CVE-2020-1737 >= 2.8.0a1, < 2.8.9, >= 2.9.0a1, < 2.9.6, < 2.7.17 2.8.9, 2.9.6, 2.7.17
  9. High · 7.4 CVE-2020-1734 >= 2.10.0a1, < 2.10.0rc1, >= 2.9.0a1, < 2.9.11, < 2.8.13 2.10.0rc1, 2.9.11, 2.8.13
  10. High · 6.5 CVE-2019-14856 >= 2.6.0, < 2.6.20, >= 2.7.0, < 2.7.14, >= 2.8.0, < 2.8.6 2.6.20, 2.7.14, 2.8.6
  11. High · 6.5 CVE-2019-10217 >= 2.8.0a1, < 2.8.4 2.8.4
  12. High · 7.5 CVE-2016-8614 < 2.2.0.0 2.2.0.0
Show more (12) Showing 21 of 33

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