MEDIUM 5.3 NVD
CVE-2026-103396
bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission ru
bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission rule matches the /api/admin/user/synccount endpoint before the intended dashboard.user.update rule. Authenticated users with only view permissions can call the synccount endpoint to trigger expensive full-table user recounts and cache invalidations, causing denial of service through repeated concurrent database operations.
References
- https://github.com/mlogclub/bbs-go
- https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/admin/user_handlers.go#L4
- https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/permissions/admin_permission_regis
- https://github.com/mlogclub/bbs-go/commit/97d0bb3dcbacd686fd5300295afbf4f4a5da7609
- https://github.com/mlogclub/bbs-go/issues/303
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-09-30 via NVD.
vulnfeed aggregates 9504 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.