Fleet before 4.89.0 contains an unbounded recursion vulnerability in Apple MDM enrollment property list parsing that allows unauthenticated attackers to crash the server. Attackers can send a crafted binary plist payload of about 150 bytes to the enrollment endpoints, triggering exponential allocation or infinite recursion that exhausts CPU and memory.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
fleetdm fleet unaffected
Version Status Constraints
0 affected < 4.89.0
4.89.0 unaffected —

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No data.

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Project Subscriptions

Vendors Products
Fleetdm Subscribe
Fleet Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/fleetdm/fleet/security/advisories/GHSA-x467-vgxf-2g6h cve-icon cve-icon
https://www.vulncheck.com/advisories/fleet-before-4.89.0-unauthenticated-dos-via-apple-mdm-enrollment-plist-parsing cve-icon cve-icon
History

Sat, 17 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description Fleet before 4.89.0 contains an unbounded recursion vulnerability in Apple MDM enrollment property list parsing that allows unauthenticated attackers to crash the server. Attackers can send a crafted binary plist payload of about 150 bytes to the enrollment endpoints, triggering exponential allocation or infinite recursion that exhausts CPU and memory.
Title Fleet before 4.89.0 Unauthenticated DoS via Apple MDM Enrollment Plist Parsing
First Time appeared Fleetdm
Fleetdm fleet
Weaknesses CWE-674
CPEs cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*
Vendors & Products Fleetdm
Fleetdm fleet
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-17T18:46:36.681Z

Reserved: 2026-10-17T12:19:42.358Z

Link: CVE-2026-111923

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-17T19:16:35.117

Modified: 2026-10-17T19:16:35.117

Link: CVE-2026-111923

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T21:15:15Z

Weaknesses