CVE-2026-39957
Lychee has Broken Access Control in SharingController::listAll() leaks private album sharing metadata to unauthorized users
- State
- Published
- Severity
- 2.3 Low
- Published
- Apr 9, 2026
- Updated
- Apr 9, 2026
- Reserved
- Apr 7, 2026
Description
Lychee is a free, open-source photo-management tool. Prior to 7.5.4, a SQL operator-precedence bug in SharingController::listAll() causes the orWhereNotNull('user_group_id') clause to escape the ownership filter applied by the when() block. Any authenticated non-admin user with upload permission who owns at least one album can retrieve all user-group-based sharing permissions across the entire instance, including private albums owned by other users. This vulnerability is fixed in 7.5.4.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
LycheeLycheeOrg |
|
References
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