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CVE-2026-122138 Details

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.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/middlewares/LoginMiddleware.php#L119-L158	[email protected]
https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/bd4af38d2f7d499be23fc4106f93980a1348ddd7	[email protected]
https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/267	[email protected]
https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4	[email protected]
https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-773r-585g-6vc3	[email protected]
https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-4.2.0-before-4.3.4-login-rate-limit-bypass	[email protected]

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-307	Improper Restriction of Excessive Authentication Attempts	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes