{"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","slug":"CVE-2026-86055","body":"## Overview\n\nPart-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.\n\n## Affected\n\n- `Part-DB-server < 2.13.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}