Vulnerability Details CVE-2026-39957
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.3%
CVSS Severity
CVSS v3 Score 4.3
Products affected by CVE-2026-39957
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cpe:2.3:a:lycheeorg:lychee:3.1.6
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cpe:2.3:a:lycheeorg:lychee:3.2.16
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cpe:2.3:a:lycheeorg:lychee:4.0.0
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cpe:2.3:a:lycheeorg:lychee:4.0.1
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cpe:2.3:a:lycheeorg:lychee:4.0.2
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cpe:2.3:a:lycheeorg:lychee:4.0.3
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cpe:2.3:a:lycheeorg:lychee:4.0.4
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cpe:2.3:a:lycheeorg:lychee:4.0.5
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cpe:2.3:a:lycheeorg:lychee:4.0.6
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cpe:2.3:a:lycheeorg:lychee:4.0.7
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cpe:2.3:a:lycheeorg:lychee:4.0.8
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cpe:2.3:a:lycheeorg:lychee:4.1.0
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cpe:2.3:a:lycheeorg:lychee:4.10.0
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cpe:2.3:a:lycheeorg:lychee:4.11.0
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cpe:2.3:a:lycheeorg:lychee:4.11.1
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cpe:2.3:a:lycheeorg:lychee:4.12.0
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cpe:2.3:a:lycheeorg:lychee:4.13.0
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cpe:2.3:a:lycheeorg:lychee:4.2.0
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cpe:2.3:a:lycheeorg:lychee:4.2.1
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cpe:2.3:a:lycheeorg:lychee:4.2.2
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cpe:2.3:a:lycheeorg:lychee:4.3.0
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cpe:2.3:a:lycheeorg:lychee:4.3.4
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cpe:2.3:a:lycheeorg:lychee:4.3.5
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cpe:2.3:a:lycheeorg:lychee:4.3.6
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cpe:2.3:a:lycheeorg:lychee:4.4.0
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cpe:2.3:a:lycheeorg:lychee:4.5.0
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cpe:2.3:a:lycheeorg:lychee:4.5.1
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cpe:2.3:a:lycheeorg:lychee:4.5.2
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cpe:2.3:a:lycheeorg:lychee:4.5.3
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cpe:2.3:a:lycheeorg:lychee:4.6.0
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cpe:2.3:a:lycheeorg:lychee:4.6.1
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cpe:2.3:a:lycheeorg:lychee:4.6.2
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cpe:2.3:a:lycheeorg:lychee:4.6.3
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cpe:2.3:a:lycheeorg:lychee:4.6.4
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cpe:2.3:a:lycheeorg:lychee:4.6.5
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cpe:2.3:a:lycheeorg:lychee:4.7.0
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cpe:2.3:a:lycheeorg:lychee:4.7.1
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cpe:2.3:a:lycheeorg:lychee:4.7.2
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cpe:2.3:a:lycheeorg:lychee:4.7.3
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cpe:2.3:a:lycheeorg:lychee:4.7.4
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cpe:2.3:a:lycheeorg:lychee:4.8.0
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cpe:2.3:a:lycheeorg:lychee:4.8.1
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cpe:2.3:a:lycheeorg:lychee:4.9.0
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cpe:2.3:a:lycheeorg:lychee:4.9.1
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cpe:2.3:a:lycheeorg:lychee:4.9.2
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cpe:2.3:a:lycheeorg:lychee:4.9.3
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cpe:2.3:a:lycheeorg:lychee:4.9.4
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cpe:2.3:a:lycheeorg:lychee:5.0.0
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cpe:2.3:a:lycheeorg:lychee:5.0.1
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cpe:2.3:a:lycheeorg:lychee:5.0.2
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cpe:2.3:a:lycheeorg:lychee:5.0.3
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cpe:2.3:a:lycheeorg:lychee:5.1.0
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cpe:2.3:a:lycheeorg:lychee:5.1.1
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cpe:2.3:a:lycheeorg:lychee:5.1.2
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cpe:2.3:a:lycheeorg:lychee:5.2.0
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cpe:2.3:a:lycheeorg:lychee:5.2.1
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cpe:2.3:a:lycheeorg:lychee:5.2.2
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cpe:2.3:a:lycheeorg:lychee:5.3.0
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cpe:2.3:a:lycheeorg:lychee:5.3.1
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cpe:2.3:a:lycheeorg:lychee:5.4.0
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cpe:2.3:a:lycheeorg:lychee:5.5.0
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cpe:2.3:a:lycheeorg:lychee:5.5.1
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cpe:2.3:a:lycheeorg:lychee:6.0.0
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cpe:2.3:a:lycheeorg:lychee:6.0.1
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cpe:2.3:a:lycheeorg:lychee:6.1.0
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cpe:2.3:a:lycheeorg:lychee:6.1.1
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cpe:2.3:a:lycheeorg:lychee:6.1.2
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cpe:2.3:a:lycheeorg:lychee:6.10.0
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cpe:2.3:a:lycheeorg:lychee:6.10.1
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cpe:2.3:a:lycheeorg:lychee:6.10.2
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cpe:2.3:a:lycheeorg:lychee:6.10.3
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cpe:2.3:a:lycheeorg:lychee:6.10.4
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cpe:2.3:a:lycheeorg:lychee:6.2.0
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cpe:2.3:a:lycheeorg:lychee:6.3.0
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cpe:2.3:a:lycheeorg:lychee:6.3.1
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cpe:2.3:a:lycheeorg:lychee:6.3.2
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cpe:2.3:a:lycheeorg:lychee:6.3.3
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cpe:2.3:a:lycheeorg:lychee:6.3.4
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cpe:2.3:a:lycheeorg:lychee:6.3.5
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cpe:2.3:a:lycheeorg:lychee:6.4.0
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cpe:2.3:a:lycheeorg:lychee:6.4.1
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cpe:2.3:a:lycheeorg:lychee:6.4.2
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cpe:2.3:a:lycheeorg:lychee:6.5.0
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cpe:2.3:a:lycheeorg:lychee:6.5.1
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cpe:2.3:a:lycheeorg:lychee:6.5.2
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cpe:2.3:a:lycheeorg:lychee:6.5.3
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cpe:2.3:a:lycheeorg:lychee:6.6.0
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cpe:2.3:a:lycheeorg:lychee:6.6.1
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cpe:2.3:a:lycheeorg:lychee:6.6.10
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cpe:2.3:a:lycheeorg:lychee:6.6.11
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cpe:2.3:a:lycheeorg:lychee:6.6.12
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cpe:2.3:a:lycheeorg:lychee:6.6.13
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cpe:2.3:a:lycheeorg:lychee:6.6.14
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cpe:2.3:a:lycheeorg:lychee:6.6.2
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cpe:2.3:a:lycheeorg:lychee:6.6.3
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cpe:2.3:a:lycheeorg:lychee:6.6.4
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cpe:2.3:a:lycheeorg:lychee:6.6.5
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cpe:2.3:a:lycheeorg:lychee:6.6.6
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cpe:2.3:a:lycheeorg:lychee:6.6.7
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cpe:2.3:a:lycheeorg:lychee:6.6.8
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cpe:2.3:a:lycheeorg:lychee:6.6.9
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cpe:2.3:a:lycheeorg:lychee:6.7.0
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cpe:2.3:a:lycheeorg:lychee:6.7.1
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cpe:2.3:a:lycheeorg:lychee:6.7.2
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cpe:2.3:a:lycheeorg:lychee:6.8.0
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cpe:2.3:a:lycheeorg:lychee:6.8.1
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cpe:2.3:a:lycheeorg:lychee:6.9.0
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cpe:2.3:a:lycheeorg:lychee:6.9.1
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cpe:2.3:a:lycheeorg:lychee:6.9.2
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cpe:2.3:a:lycheeorg:lychee:6.9.3
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cpe:2.3:a:lycheeorg:lychee:6.9.4
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cpe:2.3:a:lycheeorg:lychee:7.0.0
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cpe:2.3:a:lycheeorg:lychee:7.0.1
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cpe:2.3:a:lycheeorg:lychee:7.1.0
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cpe:2.3:a:lycheeorg:lychee:7.1.1
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cpe:2.3:a:lycheeorg:lychee:7.1.2
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cpe:2.3:a:lycheeorg:lychee:7.2.0
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cpe:2.3:a:lycheeorg:lychee:7.2.1
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cpe:2.3:a:lycheeorg:lychee:7.3.0
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cpe:2.3:a:lycheeorg:lychee:7.3.1
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cpe:2.3:a:lycheeorg:lychee:7.3.2
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cpe:2.3:a:lycheeorg:lychee:7.3.3
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cpe:2.3:a:lycheeorg:lychee:7.4.0
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cpe:2.3:a:lycheeorg:lychee:7.4.1
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cpe:2.3:a:lycheeorg:lychee:7.4.2
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cpe:2.3:a:lycheeorg:lychee:7.5.0
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cpe:2.3:a:lycheeorg:lychee:7.5.1
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cpe:2.3:a:lycheeorg:lychee:7.5.2
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cpe:2.3:a:lycheeorg:lychee:7.5.3