CVE-2026-86018 Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-86018?
CVE-2026-86018 is a medium-severity vulnerability in Part-DB-server, published on 23 Oct 2026.
Official description
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.
Which versions are affected by CVE-2026-86018?
How do I fix CVE-2026-86018?
No fix has been published for CVE-2026-86018 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86018 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86018 exists.
Sources
Also known as GHSA-2whx-2cx7-qvq6.