CVE-2026-85684

Summary

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.

Affected Software

Weaknesses

• CWE-73: External Control of File Name or Path

References

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

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