CVE-2026-84702
Received Received - Intake

Path Traversal in FaceFusion via Job Identifier Parameter

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: VulnCheck

Description
facefusion through 3.6.1 fails to normalize job identifiers in get_job_file_name, allowing attackers to write files outside the jobs directory. Attackers can supply traversal sequences in the job identifier parameter through the unauthenticated HTTP API to create files at arbitrary locations.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84702
EUVD
EUVD-2026-69793

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
facefusion facefusion to 3.7.0 (exc)
facefusion facefusion 3.6.1
facefusion facefusion 3.7.0
facefusion facefusion to 3.6.1 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a path traversal vulnerability in FaceFusion versions before 3.7.0. It allows attackers to write files outside the intended jobs directory by supplying traversal sequences like ../ in the job identifier parameter through the unauthenticated HTTP API. The flaw occurs because the get_job_file_name function fails to properly normalize job identifiers.

Detection Guidance

Check if your FaceFusion instance is running version 3.7.0 or later. Inspect HTTP API requests to the /gradio_api/run/ endpoint for job_id parameters containing traversal sequences like ../. Monitor filesystem writes outside the intended .jobs directory.

Impact Analysis

Attackers could overwrite existing files, corrupt configurations, or inject malicious content into writable directories. This could lead to denial of service, data loss, or system compromise. The attack requires no authentication or user interaction.

Mitigation Strategies

Upgrade FaceFusion to version 3.7.0 or later immediately. Disable unauthenticated access to the Gradio UI if possible. Restrict write permissions to directories where FaceFusion stores job files.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-84702. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart