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CRITICAL

CVE-2026-85684

CVSS v3

9.1

CRITICAL

EPSS Score

1.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-09-04
Last Modified
2026-09-04

Frequently asked questions

What is 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.

Is CVE-2026-85684 actively exploited?

Active exploitation of CVE-2026-85684 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-85684?

CVE-2026-85684 has a CVSS v3 base score of 9.1 (CRITICAL severity).

Is CVE-2026-85684 affecting your environment?

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