CVE-2026-84715
High · 8.8CVSS
8.8
EPSS
0.6%
Published
Sep 2, 2026
CISA due date
—
The record
FeatherPanel versions before 1.3.7.10 fail to validate permissions in the SubuserController updateSubuser handler, allowing authenticated subusers to modify their own permission records. A subuser with minimal permissions can send a crafted request to grant themselves full server control, enabling unauthorized access to sensitive data, backups, and server configuration.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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