CVE-2026-35211
mediumpriority · track · 0OT risk · elevatedEPSS 0.005 · 44 %ileDEEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2255OpenCTI: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-07-08csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in OpenCTI ausnutzen, um einen Denial of Service Angriff durchzuführen.
- PYSEC-2026-34462026-07-08vendor · osvUS
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.
also known as (4)
Other names and identifiers for this entity.
sources
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references (12)
External citations — patches, advisories, analysis.
- https://github.com/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e1d60c3bdbd9cnnvd
- https://github.com/OpenCTI-Platform/opencti/pull/15284cnnvd
- https://github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0cnnvd
- https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4cnnvd
- https://github.com/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e1d60c3bdbd9enisa_euvd
- https://github.com/OpenCTI-Platform/opencti/pull/15284enisa_euvd
- https://github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0enisa_euvd
- https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4enisa_euvd
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