CVE-2026-86018CWE-400CWE-770denial-of-service

Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads

Medium · published October 23, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
18.6
In the wild
Unconfirmed
What it is

Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB allows authenticated users to bypass the configured maximum attachment file size when using the server-side “Download external file” attachment feature. When server-side attachment downloads are enabled, Part-DB downloads the remote file and streams it directly to disk without enforcing the configured MAX_ATTACHMENT_FILE_SIZE limit. As a result, an authenticated user who can create or edit attachments can cause Part-DB to store files larger than the configured maximum attachment size, potentially exhausting disk space and causing a denial of service. This issue has been patched in version 2.13.2.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00272 · 18.6th percentile
Weaknesses
CWE-400 · Uncontrolled Resource Consumption; CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-10-23T04:00Z
EPSS history
Timeline
  • 24 OCT 04:04Z
    EPSS moved — → 0%
    epss
  • 23 OCT 04:00Z
    Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads
    cvelistv5
  • 23 OCT 04:00Z
    Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads
    cvelistv5