CVE-2026-38361Public exploitNetwork attack vector

Unauthenticated service interruption via unbounded chunk allocation

Published May 8, 2026 · Updated May 8, 2026

Denial of service in fohrloop dash-uploader 0.1.0 through 0.7.0a2 allows remote attackers to crash upload services via crafted requests. The BaseHttpRequestHandler._post method creates a chunk-path list from an unbounded resumableTotalChunks value, treats zero chunks as complete, and never enforces max_file_size on the server. No authentication or user interaction is required; memory exhaustion can terminate the process, incomplete uploads can fill disk space, and zero-chunk requests can truncate files.

CVSS severity7.5
High
EPSS probability2.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in fohrloop dash-uploader 0.1.0 through 0.7.0a2 allows remote attackers to crash upload services via crafted requests. The BaseHttpRequestHandler._post method creates a chunk-path list from an unbounded resumableTotalChunks value, treats zero chunks as complete, and never enforces max_file_size on the server. No authentication or user interaction is required; memory exhaustion can terminate the process, incomplete uploads can fill disk space, and zero-chunk requests can truncate files.

The record

CVE
CVE-2026-38361
Published
May 8, 2026
Updated
May 8, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, CWE-670, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-670Always-Incorrect Control Flow Implementation
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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