CVE WatchJul 13, 2026

CVE-2026-35211

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260401.0, the OpenCTI GraphQ

CVSS

6.5

Medium

EPSS

0.4%

p29

KEV

—

Exploit Today

0-100

Published: Jul 8, 2026 · Last modified: Jul 13, 2026 · CWE-94 · CWE-863

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-07-092026-07-21

Technical 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.

Official references

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