Incorrect Authorization in Fleet Server Leading to Denial of Service of Agent Upload Operations (Elastic Fleet Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.29 % · percentile 22 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- elastic
- NVD status
- Analyzed
Description
Incorrect Authorization (CWE-863) in Fleet Server can lead to a denial of service of agent upload operations via Privilege Abuse (CAPEC-122). Fleet Server does not correctly verify session ownership during multi-part data upload operations, allowing any authenticated agent to interfere with the active upload sessions belonging to other enrolled agents.
Weaknesses (CWE)
- CWE-863 — Incorrect Authorization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L | elastic |
| CVSS 3.1 | LOW 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L | NVD · security@elastic.co (Secondary) |
European references
- ENISA EUVD · EUVD-2026-70065
- GCVE · GCVE-0-2026-78587
CERT-FR advisories
- CERTFR-2026-AVI-1107 — Multiples vulnérabilités dans les produits Elastic · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:elastic:fleet_server:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.19.16cpe:2.3:a:elastic:fleet_server:*:*:*:*:*:*:*:*≥ 9.0.0 < 9.3.5cpe:2.3:a:elastic:fleet_server:*:*:*:*:*:*:*:*≥ 9.4.0 < 9.4.2
Affected products
| Product | Versions |
|---|---|
| Elastic · Fleet Server | affected 8.0.0 ≤ 8.19.15 ; affected 9.0.0 ≤ 9.3.4 ; affected 9.4.0 ≤ 9.4.1 |
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 |