CVE-2026-91851Network attack vectorHinoki check available

Dashboard template ACL bypass via numeric coercion

Published Sep 15, 2026 · Updated Sep 15, 2026

Improper access control in MISP 2.5.45 and earlier allows remote authenticated users to view permission-restricted dashboard templates. DashboardsController::listTemplates compares a VARCHAR permission flag with integer 0, so MySQL coerces nonnumeric flags to zero and treats restricted templates as unrestricted. Any authenticated user who can list dashboard templates can see templates reserved for permissions that the account lacks.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in MISP 2.5.45 and earlier allows remote authenticated users to view permission-restricted dashboard templates. DashboardsController::listTemplates compares a VARCHAR permission flag with integer 0, so MySQL coerces nonnumeric flags to zero and treats restricted templates as unrestricted. Any authenticated user who can list dashboard templates can see templates reserved for permissions that the account lacks.

The record

CVE
CVE-2026-91851
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
MISP Project
Product
MISP
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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 <2.5.46

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MISP Project · MISPversion=0 <2.5.46

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

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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

No sourced classifications are available.

Public exploit references

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Technologies

Your stack

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Your stack

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