CVE-2026-122138

MediumCVSS 5.3/10Last modified Nov 9, 2026

Description

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-307

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
blueprintue	blueprintue-self-hosted-edition	>= 4.2.0, < 4.3.4

References

Timeline

Published: Nov 4, 2026
Last modified: Nov 9, 2026
NVD status: Received

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