Incorrect Ownership Assignment Affecting github.com/sysadminsmedia/homebox/backend/app/api package, versions <0.25.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Apr 2026
- disclosed17 Apr 2026
- credittmeuze
Introduced: 17 Apr 2026
CVE-2026-40196 Â (opens in a new tab)How to fix?
Upgrade github.com/sysadminsmedia/homebox/backend/app/api to version 0.25.0 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Ownership Assignment through improper validation of the defaultGroup ID after group access revocation. An attacker can gain unauthorized access to group collections and perform full CRUD operations by omitting the X-Tenant header in API requests.