CVE-2026-122138 (GCVE-0-2026-122138)

Vulnerability from cvelistv5 – Published: 2026-11-04 20:36 – Updated: 2026-11-09 16:59
VLAI
Title
BlueprintUE Self-Hosted Edition 4.2.0 before 4.3.4 Login Rate Limit Bypass
Summary
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.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:09 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
blueprintue blueprintue-self-hosted-edition Affected: 4.2.0 , < 4.3.4 (semver)
Create a notification for this product.
Date Public
2026-11-04 14:28
Credits
Farhan Khan rancoud
Show details on NVD website
To clipboard 

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