HomeBox: Forced Group Membership Without Consent in Homebox AddMember Handler

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-48974
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-21 18:17:08 UTC
Updated2026-09-21 18:17:08 UTC
DescriptionHomeBox is a home inventory and organization system. Prior to 0.26.0, POST /v1/groups/members invokes HandleGroupMemberAdd and GroupService.AddMember using a caller-supplied userID without requiring an owner role, an invitation token, target-user consent, or target-user notification. Any authenticated user can force another account into the caller's group, disclose the target user's email address and name through the resulting member list, and create the membership prerequisite used by a separate cross-group inventory-wipe vulnerability. This issue is fixed in version 0.26.0.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Problem Types: CWE-841 | CWE-862 | CWE-841 CWE-841: Improper Enforcement of Behavioral Workflow | CWE-862 CWE-862: Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Sysadminsmedia Homebox affected < 0.26.0 Not specified

References

ReferenceSourceLinkTags
github.com/sysadminsmedia/homebox/releases/tag/v0.26.0 [email protected] github.com
github.com/sysadminsmedia/homebox/security/advisories/GHSA-ffcw-whqh-hgqf [email protected] github.com
github.com/sysadminsmedia/homebox/commit/ed3216a80998dfd81d4418700696244... [email protected] github.com
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