CVE-2026-38361: Fohrloop Dash-Uploader

High severity, CVSS 7.5. EPSS: 2.8% chance of exploitation in the next 30 days.

Multiple unauthenticated denial-of-service (DoS) issues in fohrloop dash-uploader v0.1.0 through v0.7.0a2. The chunked-upload handler (dash_uploader/httprequesthandler.py, dash_uploader/upload.py) trusts unsanitized, attacker-controlled upload parameters (e.g. flowTotalChunks) and does not enforce the documented max_file_size limit, allowing a remote, unauthenticated attacker to cause an out-of-memory (OOM) process crash (unbounded range(1, flowTotalChunks + 1) allocation), truncation of the target file to zero bytes (flowTotalChunks=0, where the all([]) == True quirk runs the file-assembly branch on zero chunks), permanent disk exhaustion (never-cleaned-up temporary directories per flowIdentifier), and a complete bypass of the documented max_file_size limit.

Affected products

• Fohrloop Dash-Uploader: from 0.1.0, up to and including 0.6.1; version 0.7.0 only

Published 2026-05-08. Last modified 2026-06-17.