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Description

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.9.1, the GraphQL mutations "IndividualDeletionDeleteMutation" is intended to allow users to delete individual entity objects respectively. However, it was observed that this mutation can be misused to delete unrelated and sensitive objects such as analyses reports etc. This behavior stems from the lack of validation in the API to ensure that the targeted object is contextually related to the mutation being executed. Version 6.9.1 fixes the issue.

PUBLISHED Reserved 2026-01-05 | Published 2026-03-17 | Updated 2026-03-17 | Assigner GitHub_M




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-285: Improper Authorization

CWE-566: Authorization Bypass Through User-Controlled SQL Primary Key

CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Product status

< 6.9.1
affected

References

github.com/...pencti/security/advisories/GHSA-mhmx-j75v-2m6x

cve.org (CVE-2026-21886)

nvd.nist.gov (CVE-2026-21886)

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