Multiple unauthenticated denial-of-service (DoS) issues in fohrloop dash-uploader v0.1.0…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fohrloop:dash-uploader:*:*:*:*:*:python:*:* | 0.1.0 – 0.6.1 | Vulnerable | Fohrloop |
| cpe:2.3:a:fohrloop:dash-uploader:0.7.0:alpha1:*:*:*:python:*:* | 0.7.0 alpha1 | Vulnerable | Fohrloop |
| cpe:2.3:a:fohrloop:dash-uploader:0.7.0:alpha2:*:*:*:python:*:* | 0.7.0 alpha2 | Vulnerable | Fohrloop |
- cpe:2.3:a:fohrloop:dash-uploader:*:*:*:*:*:python:*:* Versions 0.1.0 – 0.6.1 Vulnerable ·Fohrloop
- cpe:2.3:a:fohrloop:dash-uploader:0.7.0:alpha1:*:*:*:python:*:* Versions 0.7.0 alpha1 Vulnerable ·Fohrloop
- cpe:2.3:a:fohrloop:dash-uploader:0.7.0:alpha2:*:*:*:python:*:* Versions 0.7.0 alpha2 Vulnerable ·Fohrloop
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-38361
- 2026-10-03 Alias added: GHSA-xp7f-v245-w3w8
References
Other 10
- 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/github/advisory-database/pull/7636
- https://github.com/advisories/GHSA-xp7f-v245-w3w8
Sources
- CVE-2026-38361 · CVE Program
- CVE-2026-38361 · NVD
- FIRST EPSS
- GHSA-xp7f-v245-w3w8 · GitHub Advisory Database · CC BY 4.0
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