CVE-2026-39980: Improper Neutralization of Special Elements Used in a Template Engine

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly sanitize EJS templates. Users with the Manage customization capability can run arbitrary JavaScript in the context of the OpenCTI platform...

CVE-2026-21886

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...

CVE-2026-21887

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration allowAbsoluteUrls: true...

PYSEC-2026-117

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...

CVE-2026-21886

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...

PYSEC-2026-117

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...

CVE-2026-21886

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...

EUVD-2026-12578

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...

CVE-2026-21886 OpenCTI's GraphQL Mutations Allow Deletion of Unrelated Entities

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...

CVE-2026-21886

OpenCTI CVE-2026-21886 describes a validation gap in the GraphQL mutation IndividualDeletionDeleteMutation that could let a user delete unrelated or sensitive objects (e.g., analyses, reports) due to lack of contextual checks. Affected software: OpenCTI prior to version 6.9.1. Root cause: API mut...

CVE-2026-21886 OpenCTI's GraphQL Mutations Allow Deletion of Unrelated Entities

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...

CVE-2026-21886 OpenCTI's GraphQL Mutations Allow Deletion of Unrelated Entities

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...

PT-2026-25902

Name of the Vulnerable Software and Affected Versions OpenCTI versions prior to 6.9.1 Description OpenCTI is a platform for managing cyber threat intelligence knowledge and observables. A flaw exists in the 'IndividualDeletionDeleteMutation' GraphQL mutation, allowing the deletion of unrelated an...

OpenCTI security vulnerabilities

OpenCTI is an open-source network threat intelligence platform developed by OpenCTI. Versions of OpenCTI prior to 6.9.1 contained security vulnerabilities. These vulnerabilities were due to a flaw in GraphQL mutations that lacked validation, which could lead to the deletion of irrelevant and...

CVE-2026-21886: Improper Authorization

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...

CVE-2026-21887

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration allowAbsoluteUrls: true...

PYSEC-2026-118

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration allowAbsoluteUrls: true...

CVE-2026-21887 OpenCTI has a Semi-Blind SSRF via Unvalidated External URL in Data Ingestion Feature

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration allowAbsoluteUrls: true...

CVE-2026-21887 OpenCTI has a Semi-Blind SSRF via Unvalidated External URL in Data Ingestion Feature

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration allowAbsoluteUrls: true...

CVE-2026-21887 OpenCTI has a Semi-Blind SSRF via Unvalidated External URL in Data Ingestion Feature

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration allowAbsoluteUrls: true...