Path Traversal in Facefusion
CVE-2026-84702
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/facefusion/facefusion (product)
- github.com/facefusion/facefusion/blob/3.6.1/facefusion/jobs/job_manager.py (technical-description)
- github.com/facefusion/facefusion/commit/a2cbfd73b10191e51ed2eb1e83c19121153e0a22 (patch)
- github.com/facefusion/facefusion/releases/tag/3.7.0 (release-notes)
- github.com/geo-chen/oss/blob/main/facefusion.md (technical-description)
- www.vulncheck.com/advisories/facefusion-before-3.7.0-path-traversal-via-job-ide… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84702?
- CVE-2026-84702 is a high-severity vulnerability in Facefusion, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-09-02.
- How severe is CVE-2026-84702?
- High severity. CVSS v3 base score is 7.5 out of 10.