CVE-2026-91851

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Source

https://cve.org/CVERecord?id=CVE-2026-91851

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91851.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-91851

Published

2026-09-15T08:50:01Z

Modified

2026-09-18T03:30:59Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

MISP Dashboard Template ACL Bypass Due to VARCHAR-to-Integer Type Coercion in Permission Flag Comparison

Details

Affected versions of MISP incorrectly filter dashboard templates that are restricted to a specific permission flag.

DashboardsController::listTemplates() allowed a template when either:

- its restrict_to_permission_flag matched one of the current user’s permission flags, or

- restrict_to_permission_flag equaled integer 0

However, restrict_to_permission_flag is a varchar. MySQL therefore performed numeric coercion when comparing the column against integer 0. Strings such as perm_site_admin convert numerically to zero, making expressions such as perm_site_admin = 0 evaluate true and causing the “unrestricted” branch to match permission-restricted templates as well.

Version affected: ≤2.5.45

Database specific

{
    "cna_assigner": "CIRCL",
    "cwe_ids": [
        "CWE-697",
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91851.json"
}

References

Affected packages

Git / github.com/misp/misp

Affected ranges

Type

GIT

Repo

https://github.com/misp/misp

Events

Introduced

Fixed

245b8d63a

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.5.46"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91851.json"