Server-Side Request Forgery in Douyin TikTok Download API by Evil0ctal
CVE-2026-85608

8.7HIGH

Key Information:

Vendor

Evil0ctal

Status
Douyin Tiktok Download Api
Vendor
CVE Published:
4 September 2026

What is CVE-2026-85608?

The Douyin TikTok Download API, specifically version 4.1.2, contains a server-side request forgery vulnerability that affects its /api/download and /api/hybrid/video_data endpoints. An unauthenticated attacker can exploit this flaw by supplying a crafted URL in the query parameter, allowing them to request internal services. This could lead to unauthorized access to sensitive information, including response bodies that may leak credentials through error message processing.

Affected Version(s)

Douyin_TikTok_Download_API 0 <= 4.1.2

References

https://github.com/Evil0ctal/Douyin_TikTok_Download_API/i...
issue-tracking
https://github.com/Evil0ctal/Douyin_TikTok_Download_API
product
https://github.com/Evil0ctal/Douyin_TikTok_Download_API/b...
technical-description

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.