---
id: CVE-2026-52394
title: DeepSeek V4 is vulnerable to Incorrect Access Control via a crafted input.
summary: DeepSeek V4 is vulnerable to Incorrect Access Control via a crafted input.
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-201
  - CWE-209
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T19:18:52.380'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52394'
references:
  - url: 'http://deepseek.com'
    label: cve@mitre.org
  - url: 'https://gist.github.com/CAPTAIN1275/48a0b7d67d0e58cb05c607e0d715447c'
    label: cve@mitre.org
  - url: 'https://gist.github.com/CAPTAIN1275/48a0b7d67d0e58cb05c607e0d715447c'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
ingestedAt: '2026-10-13T18:41:42.744Z'
---

## Overview

DeepSeek V4 is vulnerable to Incorrect Access Control via a crafted input.

## Remediation

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