CVE-2026-18744

Any authenticated case participant can fetch any OTHER vendor's CaseStatement + per-vul CaseMemberStatus by supplying that member's id — test_func only checks _is_my_case, not ownership of kwargs['member']. Bypasses share_status; leaks embargoed vendor affected/not-affected + statement text cross-tenant.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/CERTCC/VINCE
https://github.com/CERTCC/VINCE/pull/235

Configurations

No configuration.

History

23 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Cualquier participante del caso autenticado puede obtener la CaseStatement de CUALQUIER OTRO proveedor y el CaseMemberStatus por vulnerabilidad al proporcionar el ID de ese miembro - test_func solo verifica _is_my_case, no la propiedad de kwargs[’member’]. Elude share_status; filtra el estado de afectado/no afectado del proveedor embargado y el texto de la declaración entre inquilinos.

Information

Published : 2026-08-12 22:17

Updated : 2026-10-23 19:10

NVD link : CVE-2026-18744

Mitre link : CVE-2026-18744

CVE.ORG link : CVE-2026-18744

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

{"id": "CVE-2026-18744", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18744", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-13T15:44:59.345311Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cret@cert.org", "affectedData": [{"vendor": "CERT/CC", "product": "VINCE", "versions": [{"status": "affected", "version": "0", "lessThan": "3.0.44", "versionType": "custom"}]}]}], "published": "2026-08-12T22:17:14.823", "references": [{"url": "https://github.com/CERTCC/VINCE", "source": "cret@cert.org"}, {"url": "https://github.com/CERTCC/VINCE/pull/235", "source": "cret@cert.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "Any authenticated case participant can fetch any OTHER vendor's CaseStatement + per-vul CaseMemberStatus by supplying that member's id \u2014 test_func only checks _is_my_case, not ownership of kwargs['member']. Bypasses share_status; leaks embargoed vendor affected/not-affected + statement text cross-tenant."}, {"lang": "es", "value": "Cualquier participante del caso autenticado puede obtener la CaseStatement de CUALQUIER OTRO proveedor y el CaseMemberStatus por vulnerabilidad al proporcionar el ID de ese miembro - test_func solo verifica _is_my_case, no la propiedad de kwargs[\u2019member\u2019]. Elude share_status; filtra el estado de afectado/no afectado del proveedor embargado y el texto de la declaraci\u00f3n entre inquilinos."}], "lastModified": "2026-10-23T19:10:00.167", "sourceIdentifier": "cret@cert.org"}