CVE-2026-104908

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Source

https://cve.org/CVERecord?id=CVE-2026-104908

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104908.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-104908

Published

2026-10-02T15:56:13Z

Modified

2026-10-04T02:46:41Z

Severity

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

Summary

MISP Decaying Model Import Mass Assignment Allows Cross-Organization Model Overwrite and Default Flagging

Details

MISP contains an improper input validation vulnerability in the decaying model import functionality. The import endpoint was intended to create a new decaying model belonging exclusively to the importing user's organisation, with the default flag forced to off.

However, the application stripped only the top-level id and uuid fields and pinned org_id and default on the outer array before saving the data flat. A user with decaying-model permissions could supply a nested model key carrying its own primary key, organisation identifier, and default flag, which bypassed those guards during the save operation.

Impact:

A user with perm_decaying could overwrite an existing decaying model belonging to another organisation in place, altering its name, formula, parameters, or ownership.
A user could create or modify a model flagged as the organisation default, affecting scoring behaviour for other users.
A user could reassign a model's organisation to an arbitrary value.

Preconditions:

Authenticated user with decaying-model permission (perm_decaying).
Network access to the MISP instance.

Affected: <2.5.48.

Database specific

{
    "cna_assigner": "CIRCL",
    "cwe_ids": [
        "CWE-285",
        "CWE-915"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104908.json"
}

References

Affected packages

Git / github.com/misp/misp

Affected ranges

Type

GIT

Repo

https://github.com/misp/misp

Events

Introduced

Fixed

70e319e4b

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.5.48"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104908.json"