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High

Ansible does not verify that the server hostname matches a domain name in certificates

  • Disclosed: 12.08.2015
  • Updated: 11.10.2026 11:19

Ansible before 1.9.2 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) ansible < 1.9.2 1.9.2

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-345
Platform
Python (PyPI)
Package
ansible
Disclosed
12.08.2015
Updated
11.10.2026 11:19

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2015-1 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-w64c-pxjj-h866 - 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

earlier: 4

Severity:
  1. Ansible leaks password to logs
    High · 7.5 CVE-2022-3697 >= 2.5.0, < 7.0.0 7.0.0
  2. Improper Input Validation and Command Injection in Ansible
    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
  3. Insertion of Sensitive Information into Log File in ansible
    High · 5.5 CVE-2021-20178 < 2.9.18 2.9.18
  4. Ansible Exposes Sensitive Information
    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
  5. OS Command Injection and Improper Input Validation in ansible
    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
  6. Externally Controlled Reference to a Resource in Another Sphere, Improper Input Validation, and External Control of File Name or Path in Ansible
    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
  7. Path Traversal in Ansible
    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
  8. OS Command Injection in ansible
    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
  9. The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.
    Critical · 9.8 CVE-2014-4657 < 1.5.4 1.5.4
  10. The safe_eval function in Ansible before 1.6.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions. NOTE: this vulnerability ex
    Critical · 9.8 CVE-2014-4678 < 1.6.4 1.6.4
  11. Multiple argument injection vulnerabilities in Ansible before 1.6.7 allow remote attackers to execute arbitrary code by leveraging access to an Ansible managed host and providing a crafted fact, as de
    Critical · 9.8 CVE-2014-4967 < 1.6.7 1.6.7
  12. Ansible before 1.6.7 does not prevent inventory data with "{{" and "lookup" substrings, and does not prevent remote data with "{{" substrings, which allows remote attackers to execute arbitrary code v
    Critical · 9.8 CVE-2014-4966 < 1.6.7 1.6.7
  13. Ansible prior to 1.5.4 mishandles the evaluation of some strings.
    High · 7.5 CVE-2014-2686 < 1.5.4 1.5.4
  14. ansible before versions 2.8.6, 2.7.14, 2.6.20 is vulnerable to a None
    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
  15. Exposure of Sensitive Information to an Unauthorized Actor in ansible
    High · 6.5 CVE-2019-10217 >= 2.8.0a1, < 2.8.4 2.8.4
  16. ansible-playbook -k and ansible cli tools, all versions 2.8.x before 2.8.4, all 2.7.x before 2.7.13 and all 2.6.x before 2.6.19, prompt passwords by expanding them from templates as they could contain
    High · 6.5 CVE-2019-10206 >= 2.6.0, < 2.6.19, >= 2.7.0, < 2.7.13, >= 2.8.0, < 2.8.4 2.6.19, 2.7.13, 2.8.4
  17. In Ansible, all Ansible Engine versions up to ansible-engine 2.8.5, ansible-engine 2.7.13, ansible-engine 2.6.19, were logging at the DEBUG level which lead to a disclosure of credentials if a plugin
    High · 7.8 CVE-2019-14846 < 2.6.20, >= 2.7.0, < 2.7.14, >= 2.8.0, < 2.8.6 2.6.20, 2.7.14, 2.8.6
  18. ansible before versions 2.5.14, 2.6.11, 2.7.5 is vulnerable to a information disclosure flaw in vvv+ mode with no_log on that can lead to leakage of sensible data.
    High · 5.3 CVE-2018-16876 >= 2.5.0, < 2.5.14, >= 2.6.0, < 2.6.11, >= 2.7.0, < 2.7.5 2.5.14, 2.6.11, 2.7.5
  19. Ansible "User" module leaks any data which is passed on as a parameter to ssh-keygen. This could lean in undesirable situations such as passphrases credentials passed as a parameter for the ssh-keygen
    High · 7.8 CVE-2018-16837 >= 2.7, < 2.7.1, >= 2.6, < 2.6.7, < 2.5.11 2.7.1, 2.6.7, 2.5.11
  20. Ansible apt_key module does not properly verify key fingerprint
    High · 7.5 CVE-2016-8614 < 2.2.0.0 2.2.0.0
  21. Ansible fails to properly sanitize fact variables sent from the Ansible controller
    Critical · 9.1 CVE-2016-8628 < 2.2.0.0 2.2.0.0
  22. Ansible fails to properly mark lookup-plugin results as unsafe
    Critical · 9.8 CVE-2017-7481 >= 2.3.0.0, < 2.3.1.0, < 2.1.6.0, >= 2.2.0.0, < 2.2.3.0 2.3.1.0, 2.1.6.0, 2.2.3.0
  23. A flaw was found in ansible. ansible.cfg is read from the current working directory which can be altered to make it point to a plugin or a module path under the control of an attacker, thus allowing t
    High · 7.8 CVE-2018-10875 >= 2.5, < 2.5.6, >= 2.4, < 2.4.6.0, >= 2.6, < 2.6.1 2.5.6, 2.4.6.0, 2.6.1
  24. Ansible exposes sensitive data in log files and on the terminal
    High · 5.9 CVE-2018-10855 >= 2.5.0a1, < 2.5.5, >= 2.4.0.0, < 2.4.5.0 2.5.5, 2.4.5.0
  25. In ansible it was found that inventory variables are loaded from current working directory when running ad-hoc command which are under attacker's control, allowing to run arbitrary code as a result.
    High · 7.8 CVE-2018-10874 < 2.4.6.0, >= 2.5, < 2.5.6, >= 2.6, < 2.6.1 2.4.6.0, 2.5.6, 2.6.1
  26. Ansible before version 2.3 has an input validation vulnerability in the handling of data sent from client systems. An attacker with control over a client system being managed by Ansible, and the abili
    High · 8.0 CVE-2017-7466 < 2.3.0.0 2.3.0.0
  27. Ansible fails to cache SSH host keys
    Critical · 7.4 CVE-2013-2233 < 1.2.1 1.2.1
  28. Ansible is vulnerable to an improper input validation in Ansible's handling of data sent from client systems
    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
  29. A flaw was found in the way Ansible (2.3.x before 2.3.3, and 2.4.x before 2.4.1) passed certain parameters to the jenkins_plugin module. Remote attackers could use this flaw to expose sensitive inform
    Critical · 9.8 CVE-2017-7550 >= 2.3.0.0, < 2.3.3.0, >= 2.4.0.0, < 2.4.1.0 2.3.3.0, 2.4.1.0
  30. The user module in ansible before 1.6.6 allows remote authenticated users to execute arbitrary commands.
    High · 8.8 CVE-2014-3498 < 1.6.6 1.6.6
  31. The chroot, jail, and zone connection plugins in ansible before 1.9.2 allow local users to escape a restricted environment via a symlink attack.
    High · 7.8 CVE-2015-6240 < 1.9.2 1.9.2
  32. Link Following in ansible
    High · 7.8 CVE-2016-3096 >= 2.0.0.0, < 2.0.2.0, < 1.9.6.1 2.0.2.0, 1.9.6.1
  33. Ansible does not verify that the server hostname matches a domain name in certificates this entry
    High · 7.5 CVE-2015-3908 < 1.9.2 1.9.2

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