# Elastic Fleet Server vulnerabilities

Source: https://junglewise.ai/threats/technologies/fleet-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/fleet-server.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Elastic Fleet Server: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-78587, was published on 2 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 3 (0 critical, 0 exploited in the wild)

## About Elastic Fleet Server

Fleet Server is a centralized management component for Elastic Agents.

## Latest Elastic Fleet Server vulnerabilities

- [CVE-2026-78587: Elastic Fleet Server incorrect authorization in multi-part upload](https://junglewise.ai/threats/cve-2026-78587-elastic-fleet-server-incorrect-authorization-in-multi-part-upload) (low, CVSS 3.1, published 2 Sep 2026)
- [CVE-2026-72657: Elastic Fleet Server authorization bypass in artifact downloads](https://junglewise.ai/threats/cve-2026-72657-elastic-fleet-server-authorization-bypass-in-artifact-downloads) (medium, CVSS 6.5, published 13 Aug 2026)
- [CVE-2026-56150: Elastic Fleet Server denial of service via excessive memory allocation](https://junglewise.ai/threats/cve-2026-56150-elastic-fleet-server-denial-of-service-via-excessive-memory) (medium, CVSS 6.5, published 1 Jul 2026)

## Most severe Elastic Fleet Server vulnerabilities

- [CVE-2026-72657: Elastic Fleet Server authorization bypass in artifact downloads](https://junglewise.ai/threats/cve-2026-72657-elastic-fleet-server-authorization-bypass-in-artifact-downloads) (medium, CVSS 6.5, published 13 Aug 2026)
- [CVE-2026-56150: Elastic Fleet Server denial of service via excessive memory allocation](https://junglewise.ai/threats/cve-2026-56150-elastic-fleet-server-denial-of-service-via-excessive-memory) (medium, CVSS 6.5, published 1 Jul 2026)
- [CVE-2026-78587: Elastic Fleet Server incorrect authorization in multi-part upload](https://junglewise.ai/threats/cve-2026-78587-elastic-fleet-server-incorrect-authorization-in-multi-part-upload) (low, CVSS 3.1, published 2 Sep 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 1 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Elastic technologies

- [Elastic Kibana](https://junglewise.ai/threats/technologies/kibana): 93 vulnerabilities
- [Elasticsearch](https://junglewise.ai/threats/technologies/elasticsearch): 45 vulnerabilities
- [Elastic Cloud Enterprise](https://junglewise.ai/threats/technologies/elastic-cloud-enterprise): 7 vulnerabilities
- [Elastic Apm Server](https://junglewise.ai/threats/technologies/apm-server): 4 vulnerabilities
- [Elastic Cloud on Kubernetes](https://junglewise.ai/threats/technologies/cloud-on-kubernetes): 4 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Elastic Fleet Server vulnerabilities", https://junglewise.ai/threats/technologies/fleet-server, 12 November 2026.