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CVE-2021-21296 Details

Description

Fleet is an open source osquery manager. In Fleet before version 3.7.0 a malicious actor with a valid node key can send a badly formatted request that causes the Fleet server to exit, resulting in denial of service. This is possible only while a live query is currently ongoing. We believe the impact of this vulnerability to be low given the requirement that the actor has a valid node key. There is no information disclosure, privilege escalation, or code execution. The issue is fixed in Fleet 3.7.0.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:2.7 LOWVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CNA: [email protected]CVSS-B:2.7 LOWVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/fleetdm/fleet/commit/f68f4238e83b45b2164e4ed05df14af0f06eaf40	CVE	PatchThird Party Advisory
https://github.com/fleetdm/fleet/security/advisories/GHSA-xwh8-9p3f-3x45	CVE	Third Party Advisory
https://www.npmjs.com/package/fleetctl	CVE	ProductThird Party Advisory
https://github.com/fleetdm/fleet/commit/f68f4238e83b45b2164e4ed05df14af0f06eaf40	[email protected]	PatchThird Party Advisory
https://github.com/fleetdm/fleet/security/advisories/GHSA-xwh8-9p3f-3x45	[email protected]	Third Party Advisory
https://www.npmjs.com/package/fleetctl	[email protected]	ProductThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]
CWE-400	Uncontrolled Resource Consumption	[email protected]

Affected Products

Product	Versions
fleetdm fleet	< 3.7.0
CPE cpe:2.3:a:fleetdm:fleet::::::node.js::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 21, 2022	Reanalysis	[email protected]
Feb 17, 2021	Initial Analysis	[email protected]
Feb 10, 2021	CVE Modified	[email protected]