CVE-2026-26061

Fleet is open source device management software. Prior to 4.81.0, Fleet contained multiple unauthenticated HTTP endpoints that read request bodies without enforcing a size limit. An unauthenticated attacker could exploit this behavior by sending large or repeated HTTP payloads, causing excessive memory allocation and resulting in a denial-of-service (DoS) condition. Version 4.81.0 patches the issue.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/fleetdm/fleet/security/advisories/GHSA-99hj-44vg-hfcp	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*

History

31 Mar 2026, 18:51

Type	Values Removed	Values Added
References	~~() https://github.com/fleetdm/fleet/security/advisories/GHSA-99hj-44vg-hfcp -~~	() https://github.com/fleetdm/fleet/security/advisories/GHSA-99hj-44vg-hfcp - Vendor Advisory
First Time		Fleetdm fleet Fleetdm
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:fleetdm:fleet::::::::

27 Mar 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-27 19:16

Updated : 2026-03-31 18:51

NVD link : CVE-2026-26061

Mitre link : CVE-2026-26061

CVE.ORG link : CVE-2026-26061

JSON object : View

Products Affected

fleetdm

fleet

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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