Sysadminsmedia Homebox up to 0.26.x Login Endpoint /api/v1/users/login improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, was found in Sysadminsmedia Homebox up to 0.26.x. This affects an unknown part of the file /api/v1/users/login of the component Login Endpoint. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2026-85286. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Sysadminsmedia Homebox up to 0.26.x and classified as problematic. Affected by this issue is some unknown functionality of the file /api/v1/users/login of the component Login Endpoint. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. CVE summarizes:

HomeBox is a home inventory and organization system. Prior to 0.27.0, the POST /api/v1/users/login endpoint performs password-hash verification only when the submitted username matches an existing account, while unknown usernames return immediately. Although both paths return the same 401 unauthorized response, the processing-time discrepancy allows an unauthenticated remote attacker to distinguish registered email addresses; rate limiting only reduces the number of attempts per window. This issue is fixed in version 0.27.0.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-85286 since 09/03/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 0.27.0 eliminates this vulnerability.

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Productinfo

Vendor

• Sysadminsmedia

Name

• Homebox

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26

Website

• Product: https://github.com/sysadminsmedia/homebox/

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