# CERT-FR Advisory: Multiple Elastic Product Flaws

Published: 2026-10-07 · Severity: routine · Sectors: technology
Canonical: https://vorant.io/reports/26015b00-24b4-5e3e-ad25-6954e2c52eb8/cert-fr-advisory-multiple-elastic-product-flaws

> CERT-FR warns of multiple vulnerabilities in Elasticsearch, Kibana and Elastic Agent enabling privilege escalation, data exposure and security bypass; patches available.

CERT-FR has published an advisory covering multiple vulnerabilities across Elastic's product suite, including Elasticsearch, Kibana, and Elastic Agent. The flaws affect various version branches (8.19.x, 9.x, and 9.5.x prior to specific patched releases) and collectively allow attackers to achieve privilege escalation, data integrity compromise, confidentiality breaches, security policy bypass, and remote denial of service. Fourteen CVEs are referenced (CVE-2026-102404 through CVE-2026-102413 and CVE-2026-103005 through CVE-2026-103009), each addressed in one of several Elastic security bulletins published on 6 October 2026.

No indication is given in the advisory that these vulnerabilities are currently being exploited in the wild; this is a standard vendor-patch notification relayed by the French national CERT. Defenders running affected Elastic Stack components should consult the referenced Elastic security bulletins (ESA-2026-185 through ESA-2026-199) for CVE-specific details and apply the corresponding patched versions: Elastic Agent 9.5.5/9.4.8/8.19.22, Elasticsearch 9.5.5/9.4.8/8.19.23, and Kibana 9.5.5/9.4.8/8.19.22 (or later as specified per bulletin).

Organizations operating Elastic Stack deployments, particularly those exposed to untrusted networks or used for centralized logging and SIEM functions, should prioritize patching given the range of impacts including privilege escalation and data confidentiality loss. No exploit code or in-the-wild activity is mentioned in this advisory.

## Mentioned in this report

- Vulnerabilities: CVE-2026-102404, CVE-2026-102406, CVE-2026-102407, CVE-2026-102408, CVE-2026-102409, CVE-2026-102410, CVE-2026-102411, CVE-2026-102412, CVE-2026-102413, CVE-2026-103005, CVE-2026-103006, CVE-2026-103007, CVE-2026-103008, CVE-2026-103009

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1276

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