Homebox
CVE-2026-27600
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Lifecycle Timeline
2DescriptionGitHub Advisory
HomeBox is a home inventory and organization system. Prior to 0.24.0-rc.1, the notifier functionality allows authenticated users to specify arbitrary URLs to which the application sends HTTP POST requests. No validation or restriction is applied to the supplied host, IP address, or port. Although the application does not return the response body from the target service, its UI behavior differs depending on the network state of the destination. This creates a behavioral side-channel that enables internal service enumeration. This vulnerability is fixed in 0.24.0-rc.1.
AnalysisAI
Homebox prior to 0.24.0-rc.1 allows authenticated users to trigger HTTP POST requests to arbitrary destinations through the notifier feature without host or port validation, enabling attackers to enumerate internal services by observing application behavior differences based on network responses. The vulnerability affects all users with authentication access to the notifier functionality and carries a medium risk due to its reliance on behavioral side-channels rather than direct information disclosure.
Technical ContextAI
Classified as CWE-918 (Server-Side Request Forgery (SSRF)). Affects Homebox. HomeBox is a home inventory and organization system. Prior to 0.24.0-rc.1, the notifier functionality allows authenticated users to specify arbitrary URLs to which the application sends HTTP POST requests. No validation or restriction is applied to the supplied host, IP address, or port. Although the application does not return the response body from the target service, its UI behavior differs depending on the network state of the destination. This creates a behavioral side-channel that enables
RemediationAI
Fixed in version 0.24.0. Restrict network access to the affected service where possible.
Broken access control in HomeBox prior to 0.25.0 allows authenticated users with revoked group access to continue perfor
Homebox prior to version 0.24.0 fails to validate the TrustProxy configuration setting, allowing attackers to bypass aut
Stored XSS in Homebox prior to 0.24.0-rc.1 allows authenticated users to upload malicious HTML or SVG files containing e
Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
Leaving vuln.today