CVE-2026-86020 Part-DB: Spreadsheet Formula Injection in XLSX Part Exports
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-86020?
CVE-2026-86020 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 contains a spreadsheet formula injection vulnerability in the part import/export workflow. An authenticated user with permission to import parts can import a CSV file containing formula-prefixed values, such as =1+1, into user-controlled part fields. When the affected part is later exported as an XLSX spreadsheet, Part-DB writes the attacker-controlled value using PhpSpreadsheet's setCellValue() method without neutralising spreadsheet formula characters. As a result, the exported XLSX file contains an executable spreadsheet formula cell rather than a plain text value. If another user exports and opens the spreadsheet, the formula may be evaluated by their spreadsheet software. This issue has been patched in version 2.13.2.
Which versions are affected by CVE-2026-86020?
How do I fix CVE-2026-86020?
No fix has been published for CVE-2026-86020 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86020 being exploited?
There is no known exploitation of CVE-2026-86020 in the wild and no public exploit code.
Sources
Also known as GHSA-hxw4-frfg-f8jw.