Medium
OpenCTI: Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoS
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-35211
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 02:37 UTC · Revision 1
Source evidence
OpenCTI: Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoS
core-osv · Original sourcePublished 8 Jul 2026, 21:08 UTC
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.
osv:CVE-2026-35211
Complete source record
{
"id": "ffc918e235941796c1b1b55296b3e548abe6a28ea6f03ac86b6cd11ee44d2690",
"url": "https://osv.dev/vulnerability/CVE-2026-35211",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "OpenCTI: Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoS",
"summary": "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.",
"evidence": "osv:CVE-2026-35211",
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"GHSA-qpp6-p693-rmm4",
"PYSEC-2026-3446"
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"modified": "2026-10-28T02:30:32.660942018Z",
"provider": "osv",
"references": [
"https://github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35211.json",
"https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4",
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"source_id": "core-osv",
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"published_at": "2026-07-08T21:08:27.097+00:00"
}