Part-DB up to 2.13.2 Password Reset authentication replay

Summaryinfo

A vulnerability identified as critical has been detected in Part-DB up to 2.13.2. Affected is an unknown function of the component Password Reset. The manipulation leads to authentication replay. This vulnerability is uniquely identified as CVE-2026-86055. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Part-DB up to 2.13.2. This issue affects some unknown functionality of the component Password Reset. The manipulation with an unknown input leads to a authentication replay vulnerability. Using CWE to declare the problem leads to CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-86055 since 09/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1040 according to MITRE ATT&CK.

Upgrading to version 2.13.3 eliminates this vulnerability.

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Productinfo

Name

• Part-DB

Version

• 2.13.0
• 2.13.1
• 2.13.2

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CPE 2.2info

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