CVE-2026-35211

Description

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260401.0, the OpenCTI GraphQL API exposes a script filter operator in its FilterOperator enum that allows any authenticated user with the KNOWLEDGE capability to pass user-supplied Elasticsearch Painless script values directly into search queries without validation or sanitization, allowing computationally expensive scripts to consume cluster CPU resources and degrade or deny service for all users. This issue is fixed in version 7.260401.0.

References

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4

https://github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0

https://github.com/OpenCTI-Platform/opencti/pull/15284

https://github.com/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e1d60c3bdbd9

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3