CVE-2026-10854

A visibility control issue in the event template creation workflow allowed non-site-admin users to access private galaxies belonging to other organisations. The event template builder loaded all enabled galaxies without applying organisation or distribution-based access restrictions, potentially exposing private galaxy metadata such as galaxy type and description to users who should not have visibility. The issue has been fixed by restricting galaxy queries for non-site-admin users to galaxies owned by the user’s organisation or galaxies with a non-private distribution setting. Site administrators retain visibility of all enabled galaxies.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/MISP/MISP/commit/d3adfe1a097dd4b403364e9af34e208660eeec1a	Patch

Configurations

Configuration 1 (hide)

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

History

05 Jun 2026, 19:51

Type	Values Removed	Values Added
CPE		cpe:2.3:a:misp:misp::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3
References	~~() https://github.com/MISP/MISP/commit/d3adfe1a097dd4b403364e9af34e208660eeec1a -~~	() https://github.com/MISP/MISP/commit/d3adfe1a097dd4b403364e9af34e208660eeec1a - Patch
First Time		Misp Misp misp

04 Jun 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-04 14:16

Updated : 2026-06-05 19:51

NVD link : CVE-2026-10854

Mitre link : CVE-2026-10854

CVE.ORG link : CVE-2026-10854

JSON object : View

Products Affected

misp

misp

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

{"id": "CVE-2026-10854", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "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:L/VI:N/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:Green", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "GREEN", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "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": "2026-06-04T14:16:37.630", "references": [{"url": "https://github.com/MISP/MISP/commit/d3adfe1a097dd4b403364e9af34e208660eeec1a", "tags": ["Patch"], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "A visibility control issue in the event template creation workflow allowed non-site-admin users to access private galaxies belonging to other organisations. The event template builder loaded all enabled galaxies without applying organisation or distribution-based access restrictions, potentially exposing private galaxy metadata such as galaxy type and description to users who should not have visibility.\n\n\n\nThe issue has been fixed by restricting galaxy queries for non-site-admin users to galaxies owned by the user\u2019s organisation or galaxies with a non-private distribution setting. Site administrators retain visibility of all enabled galaxies."}], "lastModified": "2026-06-05T19:51:39.410", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6CC44CC-27DE-4747-8484-F6C2FC8DC966", "versionEndExcluding": "2.5.39"}], "operator": "OR"}]}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}