CVE-2026-12258Network attack vector

Contact-data disclosure via static-token customer enumeration

Published Sep 14, 2026 · Updated Sep 14, 2026

Access control failure in Hiperdino REST API v1.0 allows remote authenticated users to enumerate customer contact details. The public customer/check endpoint accepts an email address or telephone number and returns both fields for a registered customer without account-specific authorization. A valid static bearer token is required, but the absence of rate limiting and generic errors enables bulk discovery of registered customers' email addresses and telephone numbers.

CVSS severityUnavailable
Unscored
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access control failure in Hiperdino REST API v1.0 allows remote authenticated users to enumerate customer contact details. The public customer/check endpoint accepts an email address or telephone number and returns both fields for a registered customer without account-specific authorization. A valid static bearer token is required, but the absence of rate limiting and generic errors enables bulk discovery of registered customers' email addresses and telephone numbers.

The record

CVE
CVE-2026-12258
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1589
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1589Gather Victim Identity Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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