CVE-2026-38361
- State
- Published
- Severity
- 7.5 High
- Published
- May 8, 2026
- Updated
- Jun 10, 2026
- Reserved
- Apr 6, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/fohrloop/dash-uploader
- https://pypi.org/project/dash-uploader/
- https://github.com/fohrloop/dash-uploader/blob/stable/dash_uploader/httprequesthandler.py
- https://github.com/fohrloop/dash-uploader/issues/153
- https://pypistats.org/packages/dash-uploader
- https://libraries.io/pypi/dash-uploader
- https://pepy.tech/project/dash-uploader
- https://docs.python.org/3/library/functions.html#all
- https://github.com/a1ohadance/CVE-2026-38361
- https://github.com/github/advisory-database/pull/7636
- https://github.com/advisories/GHSA-xp7f-v245-w3w8
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