---
id: CVE-2026-75337
title: >-
  The static resource interface /api/static/{deployKey}/ of Yu AI Code Mother
  v4.3 is vulnerable to path traversal
summary: >-
  The static resource interface /api/static/{deployKey}/ of Yu AI Code Mother
  v4.3 is vulnerable to path traversal. The user-controlled path is concatenated
  to the preview root directory without any normalization, allowing anonymous
  attack…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
published: '2026-08-28'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:04:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75337'
references:
  - url: >-
      https://github.com/fangtang7/CVE/blob/main/yu-ai/YU_AI_4.3_TRAVERSAL_POC.md
    label: cve@mitre.org
  - url: >-
      https://github.com/fangtang7/CVE/blob/main/yu-ai/YU_AI_4.3_TRAVERSAL_POC.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00422
epssPercentile: 0.36193
ingestedAt: '2026-09-09T16:14:05.517Z'
---

## Overview

The static resource interface /api/static/{deployKey}/ of Yu AI Code Mother v4.3 is vulnerable to path traversal. The user-controlled path is concatenated to the preview root directory without any normalization, allowing anonymous attackers to read files outside the preview root.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.