Path Traversal Vulnerability in Facefusion by Facefusion
CVE-2026-84702

8.7HIGH

Key Information:

Vendor

Facefusion

Status
Facefusion
Vendor
CVE Published:
2 September 2026

What is CVE-2026-84702?

The Facefusion application, specifically versions up to 3.6.1, contains a vulnerability that allows attackers to exploit the job identifier parameter via the unauthenticated HTTP API. This flaw allows for directory traversal, enabling the creation of files in arbitrary locations outside the designated jobs directory. Attackers can input malicious traversal sequences, which could lead to unauthorized file creation, posing significant security risks to the application.

Affected Version(s)

facefusion 0 < 3.7.0

References

https://github.com/facefusion/facefusion
product
https://github.com/geo-chen/oss/blob/main/facefusion.md
technical-description
https://github.com/facefusion/facefusion/blob/3.6.1/facef...
technical-description

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
High
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
.