CVE-2026-21886: OpenCTI's GraphQL Mutations Allow Deletion of Unrelated Entities
OpenCTI-Platform · opencti
Affected: OpenCTI-Platform · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 19% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- OpenCTI-Platform · opencti< 6.9.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Authorization Bypass Through User-Controlled SQL Primary Key · Insecure Direct Object Reference
- Vendor
- OpenCTI-Platform
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-21886 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.