CVE-2026-38361
Fohrloop Dash-uploader denial of service
- Published8 May 2026
Description
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.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HAffected products
Remediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
References
- https://docs.python.org/3/library/functions.html#all
- https://github.com/a1ohadance/CVE-2026-38361
- https://github.com/advisories/GHSA-xp7f-v245-w3w8
- https://github.com/fohrloop/dash-uploader
- https://github.com/fohrloop/dash-uploader/blob/stable/dash_uploader/httprequesthandler.py
- https://github.com/fohrloop/dash-uploader/issues/153
- https://github.com/github/advisory-database/pull/7636
- https://libraries.io/pypi/dash-uploader
- https://pepy.tech/project/dash-uploader
- https://pypi.org/project/dash-uploader/
and 1 more references
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2026-38361 being actively exploited?
CVE-2026-38361 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.78%.
How severe is CVE-2026-38361?
CVE-2026-38361 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 2.78% probability of exploitation.
Which products are affected by CVE-2026-38361?
Affected products include Fohrloop Dash-uploader.
How do I fix CVE-2026-38361?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2026-38361 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.