---
id: CVE-2026-86055
title: >-
  Part-DB: Password Reset Link Poisoning via Host Header Injection leads to
  pre-authentication Account Takeover
summary: >-
  Part-DB is an open source inventory management system for electronic
  components. Prior to version 2.13.3, Part-DB builds the absolute URL of the
  password-reset link it emails to a user from the client-supplied HTTP Host
  header, with no t…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-640
vendor: Part-DB
product: Part-DB-server
affected:
  - Part-DB-server < 2.13.3
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T04:09:27.051Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86055'
references:
  - url: >-
      https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r
    label: >-
      https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r
  - url: 'https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3'
    label: 'https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3'
tags:
  - cve.org
ingestedAt: '2026-10-23T05:16:21.504Z'
---

## Overview

Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.3, Part-DB builds the absolute URL of the password-reset link it emails to a user from the client-supplied HTTP Host header, with no trusted-host validation. An unauthenticated attacker who submits a forgot-password request for a known account while sending a spoofed Host header causes Part-DB to email that account a reset link whose hostname is attacker-controlled, while still embedding the genuine reset token. When the victim opens the link (or an automated inbound mail-security scanner dereferences it), the valid token is disclosed to the attacker, who replays it against the real instance to set a new password and take over the account. Because the seeded admin account can be targeted, this yields full pre-authentication administrative account takeover. This issue has been patched in version 2.13.3.

## Affected

- `Part-DB-server < 2.13.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.