Vulnerability in Datalab-To Marker
CVE-2026-85684
marker through 2.0.0 contains a path traversal vulnerability in the FastAPI /marker/upload handler that fails to sanitize the file.filename parameter. Unauthenticated attackers can supply filenames containing directory traversal sequences to write arbitrary files to any location or delete existing files on the system.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.011 · change: +0.004
Affected products
Weakness classification (CWE)
References
- github.com/datalab-to/marker (product)
- github.com/datalab-to/marker/blob/v2.0.0/marker/scripts/server.py (technical-description)
- github.com/datalab-to/marker/issues/1047 (issue-tracking)
- www.vulncheck.com/advisories/marker-through-2.0.0-path-traversal-via-upload-fil… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85684?
- CVE-2026-85684 is a critical-severity vulnerability in Datalab-To Marker, classified under External Control of File Name or Path. CVSS score: 9.1/10. Published 2026-09-04.
- How severe is CVE-2026-85684?
- Critical severity. CVSS v3 base score is 9.1 out of 10.