Authorization Bypass Through User-Controlled Key in Fleet Server Leading to Information Disclosure (Elastic Fleet Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.39 % · percentile 33 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- elastic
- NVD status
- Analyzed
Description
Authorization Bypass Through User-Controlled Key (CWE-639) in Fleet Server can lead to information disclosure via Manipulating User-Controlled Variables (CAPEC-77). The authorization decision for artifact downloads relied on a client-supplied value that was persisted without being validated against the server-side record of the requesting agent's assignment. An authenticated party in possession of a valid enrolled agent credential could therefore retrieve a policy the agent is not assigned to.
Weaknesses (CWE)
- CWE-639 — Authorization Bypass Through User-Controlled Key
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:H/I:N/A:N | elastic |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD · security@elastic.co (Secondary) |
European references
- ENISA EUVD · EUVD-2026-58280
- GCVE · GCVE-0-2026-72657
Affected configurations (NVD CPE)
cpe:2.3:a:elastic:fleet_server:*:*:*:*:*:*:*:*≥ 8.3.0 < 8.19.20cpe:2.3:a:elastic:fleet_server:*:*:*:*:*:*:*:*≥ 9.0.0 < 9.4.5cpe:2.3:a:elastic:fleet_server:9.5.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Elastic · Fleet Server | affected 8.3.0 ≤ 8.19.19 ; affected 9.0.0 ≤ 9.4.4 ; affected 9.5.0 |
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 |
| 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 |