CVE-2026-85684

8.8 HIGH 1% exploit odds No fix listed Disclosure

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data tampering, service disruption.
Exploit odds: 1.1% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-09-04 15:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-23 17:17 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-04 15:17 UTC
Last modified: 2026-09-23 17:17 UTC
Exploit probability: 1.1% · EPSS, next 30 days
Weakness: CWE-73
Record status: Deferred

Attack profile CVSS 4.0 · 8.8

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: High
Availability: High

Raw vector

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:X/V:X/RE:X/U:X

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References

NVD record · CVE.org record