CVE-2026-35211

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
6.5
EG Score
6.5(medium)
EPSS
29.7%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 13, 2026

Advisory Details (4)

Auto-updated Jul 8, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

Version 7.260401.0

Patch available: OpenCTI-Platform/opencti 7.260401.0

https://github.com/OpenCTI-Platform/opencti/releases/tag/7.260401.0
github_commit

commit b134ccedf9e6 (OpenCTI-Platform/opencti)

Fix landed in OpenCTI-Platform/opencti commit b134ccedf9e6 — awaiting tagged release

https://github.com/OpenCTI-Platform/opencti/commit/b134ccedf9e68386723cb42197f8e1d60c3bdbd9
github_pr

[backend] move script usage to internal_script and remove by default from API (#15267)(#15218)

Fix merged in OpenCTI-Platform/opencti PR #15284 on 2026-03-31 — awaiting tagged release

https://github.com/OpenCTI-Platform/opencti/pull/15284
github Patch Available

Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoS · Advisory · OpenCTI-Platform/opencti · GitHub

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qpp6-p693-rmm4

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 14× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-14 17:08 UTCEG score recompute
  2. 2026-07-13 22:30 UTCEPSS rescore
  3. 2026-07-13 17:49 UTCEG score recompute
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-13 06:13 UTCEPSS rescore
  6. 2026-07-12 18:29 UTCEG score recompute
  7. 2026-07-12 05:46 UTCEPSS rescore
  8. 2026-07-11 19:10 UTCEG score recompute
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-10 19:51 UTCEG score recompute
  11. 2026-07-09 20:32 UTCEG score recompute
  12. 2026-07-09 19:10 UTCEPSS rescore
  13. 2026-07-08 21:11 UTCEG score recompute
  14. 2026-07-08 21:10 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-35211?
CVE-2026-35211 is a medium vulnerability published on July 8, 2026. 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…
When was CVE-2026-35211 disclosed?
CVE-2026-35211 was first published in the National Vulnerability Database on July 8, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35211 actively exploited?
CVE-2026-35211 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-35211?
CVE-2026-35211 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-35211?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35211, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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