# CVE-2026-110212: Stonewuu ai-fusion-video path traversal in file upload

Source: https://junglewise.ai/threats/cve-2026-110212-stonewuu-ai-fusion-video-through-1-2-0-contains-a-path-traversal  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-110212 · Severity: medium · CVSS 4.3 · Published 2026-10-13

ai-fusion-video is a video fusion application that allows users to upload media files. An authenticated attacker can exploit a path traversal vulnerability in the file upload endpoint to write files with arbitrary extensions anywhere on the server's filesystem, potentially leading to code execution or data manipulation.

Technologies: [Stonewuu Ai-Fusion-Video](https://junglewise.ai/threats/technologies/ai-fusion-video). Vendors: [Stonewuu](https://junglewise.ai/threats/vendors/stonewuu).

## Quick answers

**Is CVE-2026-110212 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-110212 being exploited in the wild.

**How severe is CVE-2026-110212?** Medium severity, with a CVSS score of 4.3, published 13 October 2026.

**Which products and versions are affected?** Stonewuu Ai-Fusion-Video through 1.2.0.

**Is there a fix for CVE-2026-110212?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-110212 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-110212?** Check whether you run Stonewuu Ai-Fusion-Video at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The POST /api/storage/upload endpoint accepts a subDir parameter that is passed to LocalStorageStrategy.storeBytes() without normalization or validation. An attacker can inject parent-directory sequences (e.g., ../) to traverse outside the intended media directory and write files to arbitrary locations with chosen extensions. The vulnerability requires authentication and allows write access limited only by the service account's file permissions.

## Affected products

- Stonewuu ai-fusion-video through 1.2.0

## Timeline

- 2026-10-13: disclosed

## References

- [https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/controller/storage/FileUploadController.java](https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/controller/storage/FileUploadController.java)
- [https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/service/storage/strategy/LocalStorageStrategy.java](https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/service/storage/strategy/LocalStorageStrategy.java)

## Related threats

- [Stonewuu ai-fusion-video insecure direct object reference](https://junglewise.ai/threats/cve-2026-121940-stonewuu-ai-fusion-video-before-1-3-0-contains-an-insecure)
- [Stonewuu ai-fusion-video insecure direct object reference in generation endpoints](https://junglewise.ai/threats/cve-2026-110213-stonewuu-ai-fusion-video-through-1-2-0-contains-an-insecure)
- [Stonewuu ai-fusion-video missing authorization in API config](https://junglewise.ai/threats/cve-2026-110209-stonewuu-ai-fusion-video-through-1-2-0-contains-a-missing)