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TI-2021-21231 Aliases CVE-2021-46434GHSA-gg4q-gffx-2ffc

EMQ X Dashboard V3.0.0 is affected by username enumeration in the "/api /v3/auth"…

Priority LOW 26Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

EMQ X Dashboard V3.0.0 is affected by username enumeration in the "/api /v3/auth" interface. When a user login, the application returns different results depending on whether the account is correct, that allowed an attacker to determine if a given username was valid

Why it matters now

EPSS 0.00868 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:emqx:emqx:3.0.0:*:*:*:*:*:*:*3.0.0Vulnerablenanomq
  • cpe:2.3:a:emqx:emqx:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·nanomq

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46434
  2. 2026-10-03 Alias added: GHSA-gg4q-gffx-2ffc

References

  • TI-2023-19269 An issue in the emqx_sn plugin of EMQX v4.3.8 allows attackers to execute a directory… CVSS 3.1MEDIUM 6.5
  • TI-2026-07683 EMQX QoS 2 PUBLISH Packet emqx_persistent_session_ds.erl race condition CVSS 4.0LOW 2.3

Sources