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Vulnerability record · CVE-2026-44379 · published 13 May 2026

CVE-2026-44379: Misp-project misp improper input validation vulnerability

Misp Project · Misp

MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, MISP Collections did not enforce RFC 4122 UUID validation on the uuid field. As a result, a user able to create or modify Collection records could submit malformed UUID values, potentially causing integrity issues or unexpected behaviour in code paths that assume Collection UUIDs are valid identifiers. This vulnerability is fixed in 2.5.37.

5.3 CVSS 4.0 Medium EPSS 0.29% · top 80.0% CWE-20 · Improper input validation
5.3CVSS 4.0 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
22 Jun 2026Last modified by NVD

Description

MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, MISP Collections did not enforce RFC 4122 UUID validation on the uuid field. As a result, a user able to create or modify Collection records could submit malformed UUID values, potentially causing integrity issues or unexpected behaviour in code paths that assume Collection UUIDs are valid identifiers. This vulnerability is fixed in 2.5.37.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/MISP/MISP/commit/f8b20358c3cd8fd3d784452901876f2db0acbf05 Patch
https://github.com/MISP/MISP/security/advisories/GHSA-jrvj-84mg-8f29 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-29858Misp-project misp vulnerabilityIn MISP before 2.4.187, __uploadLogo in app/Controller/OrganisationsController.php does not properly check for a valid logo upload.EPSS 0.38%9.8CVE-2024-29859Misp-project misp unrestricted file upload vulnerabilityIn MISP before 2.4.187, add_misp_export in app/Controller/EventsController.php does not properly check for a valid file upload.EPSS 0.82%9.8CVE-2024-25675Misp-project misp vulnerabilityAn issue was discovered in MISP before 2.4.184. A client does not need to use POST to start an export generation process. This is related to app/Cont…EPSS 0.82%9.8CVE-2024-25674Misp-project misp unrestricted file upload vulnerabilityAn issue was discovered in MISP before 2.4.184. Organisation logo upload is insecure because of a lack of checks for the file extension and MIME type.EPSS 0.78%9.8CVE-2023-50918Misp-project misp vulnerabilityapp/Controller/AuditLogsController.php in MISP before 2.4.182 mishandles ACLs for audit logs.EPSS 0.79%9.8CVE-2023-48658Misp-project misp vulnerabilityAn issue was discovered in MISP before 2.4.176. app/Model/AppModel.php lacks a checkParam function for alphanumerics, underscore, dash, period, and s…EPSS 0.92%9.8CVE-2023-48656Misp-project misp vulnerabilityAn issue was discovered in MISP before 2.4.176. app/Model/AppModel.php mishandles order clauses.EPSS 0.92%9.8CVE-2023-48659Misp-project misp vulnerabilityAn issue was discovered in MISP before 2.4.176. app/Controller/AppController.php mishandles parameter parsing.EPSS 0.92%

Source: NIST National Vulnerability Database (record CVE-2026-44379), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.