CVE-2026-35211
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…
Does this matter?
Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94, CWE-863
- Affected
- citeum/opencti
- Source
- security-advisories@github.com
References
- https://github.com/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e1d60c3bdbd9Patch
- https://github.com/OpenCTI-Platform/opencti/pull/15284Issue Tracking, Patch
- https://github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0Release Notes
- https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.