CVE-2026-44379

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 v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*

History

15 May 2026, 17:57

Type	Values Removed	Values Added
References	~~() https://github.com/MISP/MISP/commit/f8b20358c3cd8fd3d784452901876f2db0acbf05 -~~	() https://github.com/MISP/MISP/commit/f8b20358c3cd8fd3d784452901876f2db0acbf05 - Patch
References	~~() https://github.com/MISP/MISP/security/advisories/GHSA-jrvj-84mg-8f29 -~~	() https://github.com/MISP/MISP/security/advisories/GHSA-jrvj-84mg-8f29 - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
CWE		NVD-CWE-noinfo
First Time		Misp Misp misp
CPE		cpe:2.3:a:misp:misp::::::::

13 May 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-13 21:16

Updated : 2026-05-15 17:57

NVD link : CVE-2026-44379

Mitre link : CVE-2026-44379

CVE.ORG link : CVE-2026-44379

JSON object : View

Products Affected

misp

misp

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo

{"id": "CVE-2026-44379", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "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:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-05-13T21:16:48.480", "references": [{"url": "https://github.com/MISP/MISP/commit/f8b20358c3cd8fd3d784452901876f2db0acbf05", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/MISP/MISP/security/advisories/GHSA-jrvj-84mg-8f29", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-05-15T17:57:19.500", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7642E00D-57E6-4888-9369-5C21250ECF56", "versionEndExcluding": "2.5.37"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}