MEDIUM 6.3 NVD
CVE-2026-122138
BlueprintUE Self-Hosted Edition 4.2.0 before 4.3.4 contains a login rate limit bypass vulnerability in LoginMiddleware.php that keys failed-login counters on ca
BlueprintUE Self-Hosted Edition 4.2.0 before 4.3.4 contains a login rate limit bypass vulnerability in LoginMiddleware.php that keys failed-login counters on case-sensitive usernames. Unauthenticated attackers can vary username casing against case-insensitive MySQL lookups to get extra attempts and brute-force passwords past the per-account lockout.
References
- https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/middlewares
- https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/bd4af38d2f7d499be23f
- https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/267
- https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4
- https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-77
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-11-04 via NVD.
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