datalab-to marker up to 2.0.0 Upload /marker/upload file.filename path traversal

Summaryinfo

A vulnerability, which was classified as critical, was found in datalab-to marker up to 2.0.0. The impacted element is an unknown function of the file /marker/upload of the component Upload Handler. Such manipulation of the argument file.filename leads to path traversal. This vulnerability is traded as CVE-2026-85684. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in datalab-to marker up to 2.0.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file /marker/upload of the component Upload Handler. The manipulation of the argument file.filename with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-85684 since 09/04/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/04/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• datalab-to

Name

• marker

Version

• 2.0

Website

• Product: https://github.com/datalab-to/marker/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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