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Vulnerability record · CVE-2026-85684 · published 4 September 2026

CVE-2026-85684: marker through 2.0.0 contains a path traversal vulnerability in the FastAPI /marker/upload handler that fails …

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.

8.8 CVSS 4.0 High EPSS 1.1% · top 35.6% CWE-73 · CWE-73 Deferred
8.8CVSS 4.0 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
23 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/datalab-to/marker
https://github.com/datalab-to/marker/blob/v2.0.0/marker/scripts/server.py
https://github.com/datalab-to/marker/issues/1047
https://www.vulncheck.com/advisories/marker-through-2.0.0-path-traversal-via-upload-filename
https://github.com/datalab-to/marker/issues/1047

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Source: NIST National Vulnerability Database (record CVE-2026-85684), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.