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  4. CVE 2026 122138 blueprintue self hosted edition 420 before 434
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Back to active CVEs
Medium · CVSS 6.3CVE-2026-122138

BlueprintUE Self-Hosted Edition 4.2.0 before 4.3.4 Login Rate Limit BypassCVE-2026-122138

Answer in brief

CVE-2026-122138 records a Medium severity (CVSS 6.3) vulnerability in BlueprintUE Self-Hosted Edition 4.2.0 before 4.3.4 Login Rate Limit Bypass. The current sources do not mark it as known exploited. The current feed maps blueprintue/blueprintue-self-hosted-edition (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 4, 2026Updated Nov 4, 2026Source checked Nov 4, 2026First seen by HOL Nov 4, 2026Material review Nov 4, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps blueprintue/blueprintue-self-hosted-edition (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
blueprintue/blueprintue-self-hosted-editiongeneric>=4.2.0 <4.3.44.3.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for blueprintue/blueprintue-self-hosted-edition.
  2. 2Review the reported fix. Update blueprintue/blueprintue-self-hosted-edition to 4.3.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 4, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Campcodes Bitcoin Wallet System ForgotPasswordController.php random_int excessive authenticationAlso CWE-307

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-307
Source
CVE List V5
Source checked
Nov 4, 2026
References
6 linked sources
Open source record