Improper Input Validation in Kibana Email Connector Leading to Excessive Allocation (Elastic Kibana)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.43 % · percentile 37 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- elastic
- NVD status
- Analyzed
Description
Improper Input Validation (CWE-20) in Kibana's Email Connector can allow an attacker to cause an Excessive Allocation (CAPEC-130) through a specially crafted email address parameter. This requires an attacker to have authenticated access with view-level privileges sufficient to execute connector actions. The application attempts to process specially crafted email format, resulting in complete service unavailability for all users until manual restart is performed.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
- CWE-770 — Allocation of Resources Without Limits or Throttling
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | elastic |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · security@elastic.co (Secondary) |
European references
- ENISA EUVD · EUVD-2026-2035
- GCVE · GCVE-0-2026-0543
CERT-FR advisories
- CERTFR-2026-AVI-0041 — Multiples vulnérabilités dans les produits Elastic · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*≥ 7.0.0 ≤ 7.17.29cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.19.0cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*≥ 9.0.0 < 9.1.10cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*≥ 9.2.0 < 9.2.4
Affected products
| Product | Versions |
|---|---|
| Elastic · Kibana | affected 8.0.0 ≤ 8.19.9 ; affected 7.0.0 ≤ 7.17.29 ; affected 9.0.0 ≤ 9.1.9 ; affected 9.2.0 ≤ 9.2.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |