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CVE-2025-24961 s3proxy

Fix: apache/jclouds@b0819e0

CVE-2025-24961 is a Path Traversal vulnerability in org.gaul:s3proxy. A fix is available for org.gaul:s3proxy — see the affected versions and patch details below.

Insecure path traversal in filesystem and filesystem-nio2 storage backends in org.gaul S3Proxy

Also known asGHSA-2ccp-vqmv-4r4x
Published
Feb 3, 2025
Updated
Aug 12, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-24961.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs45th percentile — riskier than 45% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected
org.gaul:s3proxy

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.gaul:s3proxyall versions2.6.0org.gaul:s3proxy:2.6.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.gaul:s3proxy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.gaul:s3proxy to 2.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-24961 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-24961 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2025-24961. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

Is CVE-2025-24961 in your dependencies?

O3 Security finds CVE-2025-24961 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2025-24961: s3proxy | O3 Security