OpenCTI: Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoS

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Summary

CVECVE-2026-35211
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-08 21:16:48 UTC
Updated2026-07-08 21:16:48 UTC
DescriptionOpenCTI 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-94 | CWE-863 | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection') | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenCTI-Platform Opencti affected < 7.260401.0 Not specified

References

ReferenceSourceLinkTags
github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0 [email protected] github.com
github.com/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e... [email protected] github.com
github.com/OpenCTI-Platform/opencti/pull/15284 [email protected] github.com
github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4 [email protected] github.com
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