CVE-2026-35211 json
OpenCTI: Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoS
published 2026-07-08 4 mo ago modified 2026-10-25 14 d ago also GHSA-qpp6-p693-rmm4 , PYSEC-2026-3446 , EUVD-2026-42431
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
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.
Patch / fix
- pypi pycti 7.260401.0
- citeum opencti 7.260401.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | pycti | <7.260401.0 |
7.260401.0 |
Affected products
- OpenCTI-Platform opencti
Classification
References
-
github.com
/OpenCTI-Platform/opencti/pull/15284
issue-tracking, patch
-
github.com
/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e1d60c3bdbd9
patch
-
github.com
/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4
vendor-advisory, advisory
-
github.com
/OpenCTI-Platform/opencti/releases/tag/7.260401.0
release-notes, advisory
Sources
- CVE List CVE-2026-35211
- NVD CVE-2026-35211
- OSV PYSEC-2026-3446
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.