CVE-2026-94394Network attack vectorHinoki check available

Authenticated data disclosure via unchecked object references

Published Sep 21, 2026 · Updated Sep 21, 2026

Improper access control in MISP before 2.5.47 allows remote authenticated users to read restricted event data through object references. ObjectReferencesController resolves a supplied referenced UUID after authorizing only the enclosing event, so object- or attribute-level distribution and sharing-group restrictions do not block the lookup. A non-administrator account that can access and modify the event can therefore expose sensitive referenced values and object details assigned to narrower audiences.

CVSS severityUnavailable
Unscored
EPSS probability0.35%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in MISP before 2.5.47 allows remote authenticated users to read restricted event data through object references. ObjectReferencesController resolves a supplied referenced UUID after authorizing only the enclosing event, so object- or attribute-level distribution and sharing-group restrictions do not block the lookup. A non-administrator account that can access and modify the event can therefore expose sensitive referenced values and object details assigned to narrower audiences.

The record

CVE
CVE-2026-94394
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
MISP Project
Product
MISP
Classifications
T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 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=0 <2.5.47

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MISP Project · MISPversion=0 <2.5.47

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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