Vulnerability · Published Oct 23, 2026 · Assigned by GitHub_M

CVE-2026-86019Part-DB: Attachment Size Limit Bypass via API Base64 Upload

Medium 5.3

In plain English

A medium-severity uncontrolled resource consumption in Part-DB-server from Part-DB. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.4%top 68.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB allows authenticated API users to bypass the configured maximum attachment file size by uploading attachments through the API using base64-encoded file data. The application enforces the configured attachment size limit for normal browser-based file uploads, but the API base64 upload path does not apply the same size validation. As a result, an authenticated user with API access and permission to create attachments can upload 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.

Affected products (as reported)

Vendor	Product	Versions
Part-DB	Part-DB-server	< 2.13.2

Weakness: CWE-400, CWE-770 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References

https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-8fvw-xrgv-jq4w x_refsource_CONFIRM
https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.2 x_refsource_MISC