CVE-2026-23486Network attack vector

Unauthenticated user enumeration via public user list

Published Mar 23, 2026 · Updated Mar 23, 2026

Information exposure in Blinko before 1.8.4 allows remote attackers to enumerate users and disclose account metadata without authentication. The publicUserList procedure queries every account and returns names, roles, login types, timestamps, and linked-account identifiers through GET /api/v1/user/public-user-list. The public endpoint requires no authentication, enabling identification of usernames and privileged accounts for targeted attacks.

CVSS severity6.9
Medium
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Blinko before 1.8.4 allows remote attackers to enumerate users and disclose account metadata without authentication. The publicUserList procedure queries every account and returns names, roles, login types, timestamps, and linked-account identifiers through GET /api/v1/user/public-user-list. The public endpoint requires no authentication, enabling identification of usernames and privileged accounts for targeted attacks.

The record

CVE
CVE-2026-23486
Published
Mar 23, 2026
Updated
Mar 23, 2026
Vendor
Blinko Space
Product
Blinko
Classifications
CWE-200, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.8.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Blinko Space · Blinkoversion=< 1.8.4

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1087Account Discovery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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